1.
Kidd EAM, Fejerskov O. Essentials of dental caries [Internet]. Fourth edition. Oxford, England: Oxford University Press; 2016. Available from: https://ebookcentral.proquest.com/lib/gla/detail.action?docID=5891928
2.
Mossey PA, editor. Essential skills for dentists [Internet]. Oxford: Oxford University Press; 2023. Available from: https://login.uofglasgow.idm.oclc.org/login?url=https://doi.org/10.1093/oso/9780198526193.001.0001
3.
Mossey P. Essential skills for dentists. Oxford: Oxford University Press; 2006.
4.
Patton KT, Thibodeau GA. Anatomy & physiology. Tenth edition. St. Louis, Missouri: Elsevier; 2019.
5.
Berkovitz BKB, Holland GR, Moxham BJ, Makdissi J. Oral anatomy, histology and embryology [Internet]. Fifth edition. Edinburgh: Elsevier; 2018. Available from: https://ebookcentral.proquest.com/lib/gla/detail.action?docID=5517444
6.
Levine R, Stillman-Lowe C. The Scientific Basis of Oral Health Education [Electronic resource]. 8th ed. 2019. Cham: Springer International Publishing; 2019. Available from: https://login.uofglasgow.idm.oclc.org/login?url=https://doi.org/10.1007/978-3-319-98207-6
7.
Brand RW, Isselhard DE. Anatomy of orofacial structures: a comprehensive approach [Internet]. 8th edition. St. Louis: Elsevier; 2019. Available from: https://www.vlebooks.com/vleweb/product/openreader?id=GlasgowUni&isbn=9780323570084
8.
MacKinnon PCB, Morris JF. Oxford textbook of functional anatomy. 2nd ed. Oxford: Oxford University Press; 2005.
9.
Chiego DJ. Essentials of oral histology and embryology: a clinical approach [Internet]. Fifth edition. St. Louis, Missouri: Elsevier; 2018. Available from: https://www.clinicalkey.com/student/content/toc/3-s2.0-C20150045725
10.
Baynes JW, Dominiczak MH, editors. Medical biochemistry [Internet]. Sixth edition. Amsterdam: Elsevier; 2022. Available from: https://www.clinicalkey.com/student/content/toc/3-s2.0-C20200021304
11.
Cole AS, Eastoe JE, McGivan J, Hayes ML, Smillie AC. Biochemistry and oral biology [Internet]. Second edition. London: Wright, an imprint of Butterworth Scientific; 1988. Available from: https://ebookcentral.proquest.com/lib/gla/detail.action?docID=1675167
12.
Edgar WM, Dawes C, O’Mullane DM, editors. Saliva and oral health: an essential overview for the health professional. Fourth edition. Duns Tew, Oxfordshire: Stephen Hancocks Limited; 2012.
13.
Fehrenbach MJ, Herring SW. Illustrated anatomy of the head and neck [Internet]. Sixth edition. St. Louis, Missouri: Elsevier; 2021. Available from: https://www.clinicalkey.com/student/content/toc/3-s2.0-C20170028653
14.
Martini F, Nath JL, Bartholomew EF. Fundamentals of anatomy & physiology [Internet]. Eleventh edition, Global edition. Harlow, England: Pearson; 2018. Available from: https://ebookcentral.proquest.com/lib/gla/detail.action?docID=5186130
15.
Roddie IC, Wallace WFM, Taylor & Francis Group. MCQs & EMQs in human physiology: with answers and explanatory comments [Internet]. 6th edition. London: Taylor & Francis Group; 2004. Available from: https://login.uofglasgow.idm.oclc.org/login?url=https://www.taylorfrancis.com/books/9780429167348
16.
Tortora GJ, Derrickson B, Tortora GJ. Principles of anatomy and physiology. Sixteenth edition ; international adaptation. Hoboken, NJ: Wiley; 2023.
17.
Widmaier EP, Raff H, Strang KT, Vander AJ. Vander’s human physiology: the mechanisms of body function [Internet]. Sixteenth edition, International student edition. New York, NY: McGraw-Hill Education; 2023. Available from: https://ebookcentral.proquest.com/lib/gla/detail.action?docID=6861910
18.
O’Dowd G, Bell S, Wright S. Wheater’s functional histology: a text and colour atlas [Internet]. Seventh edition. Amsterdam: Elsevier; 2023. Available from: https://www.clinicalkey.com/student/content/toc/3-s2.0-C20190030178
19.
Ferguson DB, Shuttleworth A, Whittaker DK. Oral bioscience. Edinburgh: Churchill Livingstone; 1999.
20.
Nanci A, Ten Cate AR. Ten Cate’s oral histology: development, structure, and function [Internet]. Ninth edition. St. Louis, Missouri: Elsevier; 2017. Available from: https://ebookcentral.proquest.com/lib/gla/detail.action?docID=5517452
21.
Atkinson M, Johnson DR. Anatomy for dental students [Internet]. 4th ed. Oxford: Oxford University Press; 2013. Available from: https://ebookcentral.proquest.com/lib/gla/detail.action?docID=5891963
22.
Logan BM, Reynolds PA, Rice S, Hutchings RT. McMinn’s color atlas of head and neck anatomy [Internet]. Fifth edition. [Amsterdam]: Elsevier; 2017. Available from: https://www.vlebooks.com/vleweb/product/openreader?id=GlasgowUni&isbn=9780702070433
23.
Banerjee A, Watson TF. Pickard’s manual of operative dentistry [Internet]. Ninth edition. Oxford, [England]: Oxford University Press; 2011. Available from: https://ebookcentral.proquest.com/lib/gla/detail.action?docID=1591388
24.
Banerjee A, Watson TF. Pickard’s guide to minimally invasive operative dentistry [Internet]. Tenth edition. Oxford: Oxford University Press; 2015. Available from: https://ebookcentral.proquest.com/lib/gla/detail.action?docID=3564642
25.
Patel S, Barnes JJ, editors. The principles of endodontics [Internet]. Third edition. Oxford: Oxford University Press; 2020. Available from: https://ebookcentral.proquest.com/lib/gla/detail.action?docID=6184906
26.
McCabe JF, Walls A. Applied dental materials [Electronic resource]. 9th ed. Oxford: Blackwell Pub; 2008. Available from: https://www.vlebooks.com/vleweb/product/openreader?id=GlasgowUni&isbn=9781444309270
27.
Davenport JC, British Dental Association. A clinical guide to removable partial dentures: the assessment and treatment of patients requiring RPDs. [2nd ed.]. London: British Dental Association; 2000.
28.
Tyson KW, Yemm R, Scott BJJ. Understanding partial denture design [Internet]. Oxford: Oxford University Press; 2023. Available from: https://login.uofglasgow.idm.oclc.org/login?url=https://doi.org/10.1093/oso/9780198510925.001.0001
29.
Tyson KW, Yemm R, Scott BJJ. Understanding partial denture design. Oxford: Oxford University Press; 2007.
30.
McCord JF, Grant AA, British Dental Association. A clinical guide to complete denture prosthetics. London: British Dental Association; 2000.
31.
McCord JF, Smith P, Grey N. Treatment of edentulous patients. Edinburgh: Churchill Livingstone; 2004.
32.
Jagger D, Harrison A, British Dental Association. Complete dentures: problem solving. London: British Dental Association; 1999.
33.
Basker RM, Davenport JC, Thomason JM. Prosthetic treatment of the edentulous patient [Electronic resource]. 5th ed. Oxford: Wiley-Blackwell; 2011. Available from: https://ebookcentral.proquest.com/lib/gla/detail.action?docID=661762
34.
Basker RM, Davenport JC, Thomason JM. Prosthetic treatment of the edentulous patient. 5th ed. Oxford: Wiley-Blackwell; 2011.
35.
Clerehugh V, Tugnait A, Milward M, Chapple IL. Periodontology at a glance [Internet]. Second edition. Hoboken, NJ: Wiley Blackwell; 2024. Available from: https://app.kortext.com/borrow/2975926
36.
Gulabivala K, Ng YL. Endodontics [Electronic resource]. Fourth edition. Edinburgh: Elsevier Ltd; 2014. Available from: https://login.uofglasgow.idm.oclc.org/login?url=https://www.sciencedirect.com/science/book/9780702031557
37.
Harty FJ. Harty’s endodontics in clinical practice [Internet]. 7th edition. Chong BS, editor. Edinburgh: Elsevier Saunders; 2017. Available from: https://www.vlebooks.com/vleweb/product/openreader?id=GlasgowUni&isbn=9780702065125
38.
Hargreaves KM. Cohen’s pathways of the pulp [Internet]. Twelfth edition. St. Louis, Missouri: Elsevier; 2021. Available from: https://ebookcentral.proquest.com/lib/gla/detail.action?docID=7044848
39.
Noort R van, Barbour ME. Introduction to dental materials. Fifth edition. Edinburgh: Elsevier; 2024.
40.
Sanz M. Practical periodontics [Internet]. Eaton KA, Ower P, editors. Edinburgh: Churchill Livingstone; 2015. Available from: https://www.vlebooks.com/vleweb/product/openreader?id=GlasgowUni&isbn=9780702066801
41.
Eaton KA, Ower P, editors. Practical periodontics. Second edition. Amsterdam: Elsevier; 2023.
42.
Lindhe J. Lindhe’s clinical periodontology and implant dentistry [Internet]. Seventh edition. Berglundh T, Giannobile WV, Lang NP, Sanz M, Lindhe J, editors. Hoboken, NJ, USA: John Wiley & Sons, Inc; 2022. Available from: https://ebookcentral.proquest.com/lib/gla/detail.action?docID=6686985
43.
Santos Júnior J dos. Summitt’s fundamentals of operative dentistry: a contemporary approach [Internet]. Fourth edition. Hilton TJ, Ferracane JL, Broome JC, editors. Hanover Park, Chicago, IL: Quintessence Publishing Co, Inc; 2013. Available from: https://ebookcentral.proquest.com/lib/gla/detail.action?docID=5985689
44.
Shillingburg HT. Fundamentals of fixed prosthodontics. 4th ed. Chicago, Ill: Quintessence Publishing Co; 2012.
45.
Hupp JR, Ellis E, Tucker MR, editors. Contemporary oral and maxillofacial surgery [Internet]. Philadelphia, PA: Elsevier; 2019. Available from: https://www.vlebooks.com/vleweb/product/openreader?id=GlasgowUni&isbn=9780323552226
46.
Mitchell DA, Kanatas AN. An introduction to oral and maxillofacial surgery [Internet]. Second edition. Boca Raton, Florida: CRC Press; 2015. Available from: https://login.uofglasgow.idm.oclc.org/login?url=https://www.taylorfrancis.com/books/9780429090318
47.
Wray D. Textbook of general and oral surgery. Edinburgh: Churchill Livingstone; 2003.
48.
Zucchelli G, Gori G. Mucogingival esthetic surgery. Milan: Quintessenza Edizione; 2013.
49.
Perry M, Brown A, Banks P. Fractures of the facial skeleton. Second edition. Chichester, West Sussex, UK: Wiley Blackwell; 2015.
50.
MacKinnon PCB, Morris JF. Oxford textbook of functional anatomy. 2nd ed. Oxford: Oxford University Press; 2005.
51.
Atkinson M, Johnson DR. Anatomy for dental students [Internet]. 4th ed. Oxford: Oxford University Press; 2013. Available from: https://ebookcentral.proquest.com/lib/gla/detail.action?docID=5891963
52.
Fiske J, Dougall A, Lewis D. A clinical guide to special care dentistry. London: British Dental Association; 2009.
53.
Scully C, Dios PD, Kumar N. Special care in dentistry: handbook of oral health care [Internet]. Edinburgh: Churchill Livingstone; 2007. Available from: https://ebookcentral.proquest.com/lib/gla/detail.action?docID=4187401
54.
Scully C. Scully’s medical problems in dentistry [Internet]. 7th ed. Edinburgh: Churchill Livingstone/Elsevier; 2014. Available from: https://login.uofglasgow.idm.oclc.org/login?url=https://www.sciencedirect.com/science/book/9780702054013
55.
Sproat C, Burke G, McGurk M. Essential human disease for dentists [Internet]. Edinburgh, [Scotland]: Churchill Livingstone; 2006. Available from: https://login.uofglasgow.idm.oclc.org/login?url=https://doi.org/10.1016/B978-0-443-10098-7.X5001-5
56.
Littlewood SJ, Mitchell L, Lewis BRK, Barber SK, Jenkins FR. An introduction to orthodontics [Internet]. Fifth edition. Oxford, United Kingdom: Oxford University Press; 2019. Available from: https://ebookcentral.proquest.com/lib/gla/detail.action?docID=5799295
57.
Millett DT. Orthodontics & paediatric dentistry [Internet]. Third edition. [Ann Arbor, Michigan]: ProQuest Ebook Central; 2017. Available from: https://ebookcentral.proquest.com/lib/gla/detail.action?docID=5184717
58.
Richardson A, British Dental Association. Interceptive orthodontics. 4th ed. London: British Dental Journal; 2000.
59.
Isaacson KG, Muir JD, Reed RT, Orthocare (UK) Limited. Removable orthodontic appliances. Edinburgh: Wright; 2002.
60.
Gill DS. Orthodontics at a glance. Oxford: Blackwell Munksgaard; 2008.
61.
Parvizi F, Dawson M, Day C. Diagnosis and treatment of missing upper lateral incisors part 1. Orthodontic Update. 2011 Oct 2;4(4):102–5. doi:10.12968/ortu.2011.4.4.102
62.
Parvizi F, Dawson M, Day C. Diagnosis and treatment of missing upper lateral incisors part 2. Orthodontic Update. 2012 Jan 2;5(1):9–13. doi:10.12968/ortu.2012.5.1.9
63.
Welbury R, Duggal MS, Hosey MT, editors. Paediatric dentistry [Internet]. Fifth edition. Oxford: Oxford University Press; 2018. Available from: https://ebookcentral.proquest.com/lib/gla/detail.action?docID=5354016
64.
Albadri S, Stevens CL, editors. Paediatric dentistry for the general dental practitioner [Internet]. Cham: Springer; 2021. Available from: https://login.uofglasgow.idm.oclc.org/login?url=https://link.springer.com/10.1007/978-3-030-66372-8
65.
McCracken G, editor. Master dentistry: Volume 2: Restorative dentistry, paediatric dentistry and orthodontics. Fourth edition. London: Elsevier; 2022.
66.
Chadwick BL, Hosey MT. Child taming: how to manage children in dental practice. Second edition. Vol. 9. London: Quintessence publishing; 2017.
67.
Innes N, Evans DJP, McKay A (Illustrator), University of Dundee. The Hall technique: a minimal intervention, child centred approach to managing the carious primary molar : a user manual [Internet]. Dundee: University of Dundee; 2009. Available from: https://en.wikipedia.org/wiki/File:HallTechGuide_V4.pdf
68.
Banerjee A, editor. Minimally invasive esthetics. volume 3. Edinburgh: Elsevier; 2015.
69.
Andreasen JO, Andreasen FM, Andersson L, editors. Textbook and color atlas of traumatic injuries to the teeth [Internet]. Fifth edition. Hoboken, NJ: Wiley-Blackwell; 2019. Available from: https://login.uofglasgow.idm.oclc.org/login?url=https://ebookcentral.proquest.com/lib/gla/detail.action?docID=5527559
70.
Gupta K, Emmanouil D, Sethi A. Nitrous oxide in pediatric dentistry: a clinical handbook [Electronic resource]. Cham: Springer; 2020. Available from: https://login.uofglasgow.idm.oclc.org/login?url=https://link.springer.com/10.1007/978-3-030-29618-6
71.
SpringerLink (Online service). Dental Fear and Anxiety in Pediatric Patients: Practical Strategies to Help Children Cope [Electronic resource]. Campbell C, editor. Cham: Springer International Publishing; 2017. Available from: https://login.uofglasgow.idm.oclc.org/login?url=https://dx.doi.org/10.1007/978-3-319-48729-8
72.
McDonald RE. McDonald and Avery’s dentistry for the child and adolescent [Internet]. Eleventh edition. Dean JA, Jones JE, Sanders BJ, Vinson LAW, Yepes JF, editors. St. Louis, Missouri: Elsevier; 2022. Available from: https://www.clinicalkey.com/student/content/toc/3-s2.0-C20180045922
73.
Whaites E, Drage N. Essentials of dental radiography and radiology [Internet]. Fifth edition. Edinburgh, [Scotland]: Churchill Livingstone; 2013. Available from: https://ebookcentral.proquest.com/lib/gla/detail.action?docID=1746249
74.
Brocklebank L. Dental radiology: understanding the X-ray image. Oxford: Oxford University Press; 1997.
75.
Selection criteria for dental radiography [Internet]. Third edition. London: Faculty of General Dental Practice (UK); 2018. Available from: https://cgdent.uk/selection-criteria-for-dental-radiography/
76.
Coulthard P, Sloan P, Theaker ED, Sengupta A. Master dentistry: Volume 1: Oral and maxillofacial surgery, radiology, pathology and oral medicine. Fourth edition. St. Louis, Missouri: Elsevier; 2022.
77.
College of General Dentistry, British Dental Association, National Radiological Protection Board, Public Health England, Royal College of Surgeons of England. Faculty of General Dental Practitioners (UK). Guidance notes for dental practitioners on the safe use of x-ray equipment [Internet]. 2nd edition. London: Public Health England; 2020. Available from: https://www.rqia.org.uk/RQIA/files/44/449bdd1c-ccb0-4322-b0df-616a0de88fe4.pdf
78.
European Commission. Directorate-General for Energy and Tra. Directorate H, Nuclear Safety and Safeguards. Radiation protection 136: European guidelines on radiation protection in dental radiology : the safe use of radiographs in dental practice [Electronic resource]. Brussels: Directorate-General for Energy and Transport; 2004. Available from: https://www.sergas.es/docs/European%20Guidelines%20on%20radiation%20protection%20in%20Dental%20Radiology.pdf
79.
Isaacson KG, British Orthodontic Society. Guidelines for the use of radiographs in clinical orthodontics. 3rd ed. London: British Orthodontic Society; 2008.
80.
Great Britain. National Radiological Protection Board, College of Radiographers (Great Britain), Royal College of Radiologists (Great Britain), Royal College of General Practioners. X-rays: how safe are they? Didcot, Oxon: NRPB; 2001.
81.
McMahon RFT, Sloan P. Essentials of pathology for dentistry. Edinburgh: Churchill Livingstone; 2000.
82.
Bagg J. Essentials of microbiology for dental students [Electronic resource]. 2nd ed. Oxford: Oxford University Press; 2006. Available from: https://online.statref.com/Document.aspx?grpalias=GlasUL&FxId=143
83.
Sproat C, Burke G, McGurk M. Essential human disease for dentists [Internet]. Edinburgh, [Scotland]: Churchill Livingstone; 2006. Available from: https://login.uofglasgow.idm.oclc.org/login?url=https://doi.org/10.1016/B978-0-443-10098-7.X5001-5
84.
VanMeter K, Hubert RJ. Gould’s pathophysiology for the health professions [Internet]. Sixth edition. St. Louis, Missouri: Elsevier/Saunders; 2018. Available from: https://www.vlebooks.com/vleweb/product/openreader?id=GlasgowUni&isbn=9780323414340
85.
VanMeter K, Hubert RJ, Gould BE. Gould’s pathophysiology for the health professions. Seventh edition. St. Louis, Missouri: Elsevier; 2023.
86.
Seymour RA, Meechan JG, Yates MS, Walton JG. Pharmacology and dental therapeutics. 3rd ed. Oxford: Oxford University Press; 1999.
87.
Fiske J, Dougall A, Lewis D. A clinical guide to special care dentistry. London: British Dental Association; 2009.
88.
Robinson M, Hunter KD, Pemberton MN, Sloan P, Soames JV. Soames’ and Southam’s oral pathology [Internet]. Fifth edition. Oxford: Oxford University Press; 2018. Available from: https://online.statref.com/document/YynLqwEP-Gb93CGiZOEKkj!!
89.
Scully C. Oral and maxillofacial medicine: the basis of diagnosis and treatment [Electronic resource]. 3rd ed. Edinburgh: Churchill Livingstone/Elsevier; 2013. Available from: https://login.uofglasgow.idm.oclc.org/login?url=https://www.sciencedirect.com/science/book/9780702049484
90.
Scully C, Dios PD, Kumar N. Special care in dentistry: handbook of oral health care [Internet]. Edinburgh: Churchill Livingstone; 2007. Available from: https://ebookcentral.proquest.com/lib/gla/detail.action?docID=4187401
91.
Hubert RJ, Hubert RJ, VanMeter K. Study guide for Gould’s pathophysiology for the health professions [Internet]. Sixth edition. St. Louis, Missouri: Elsevier; 2018. Available from: https://www.vlebooks.com/vleweb/product/openreader?id=GlasgowUni&isbn=9780323414128
92.
Sooriakumaran P, Jayasena C, Scully C. Key topics in human diseases for dental students [Electronic resource]. London: Taylor and Francis; 2005. Available from: https://ebookcentral.proquest.com/lib/gla/detail.action?docID=214964
93.
Scully C. Scully’s medical problems in dentistry [Internet]. 7th ed. Edinburgh: Churchill Livingstone/Elsevier; 2014. Available from: https://login.uofglasgow.idm.oclc.org/login?url=https://www.sciencedirect.com/science/book/9780702054013
94.
Scully C, Felix DH. Oral medicine: update for the dental practitioner. London: British Dental Association; 2006.
95.
MacLeod I, Crighton A. Practical oral medicine [Internet]. Wilson NHF, Meechan JG, editors. Vol. 10. London, [England]: Quintessence Publishing Co. Ltd; 2005. Available from: https://ebookcentral.proquest.com/lib/gla/detail.action?docID=5826557
96.
Wray D. Textbook of general and oral medicine. Edinburgh: Churchill Livingstone; 1999.
97.
Daly B, Batchelor P, Treasure E, Watt R. Essential dental public health [Internet]. Seconnd edition. Oxford: Oxford University Press; 2013. Available from: https://login.uofglasgow.idm.oclc.org/login?url=https://dx.doi.org/10.1093/oso/9780199679379.001.0001
98.
Welbury R, Duggal MS, Hosey MT, editors. Paediatric dentistry [Internet]. Fifth edition. Oxford: Oxford University Press; 2018. Available from: https://ebookcentral.proquest.com/lib/gla/detail.action?docID=5354016
99.
Humphris G, Ling MS. Behavioural sciences for dentistry. Edinburgh: Churchill Livingstone; 2000.
100.
Levine R, Stillman-Lowe C. The Scientific Basis of Oral Health Education [Electronic resource]. 8th ed. 2019. Cham: Springer International Publishing; 2019. Available from: https://login.uofglasgow.idm.oclc.org/login?url=https://doi.org/10.1007/978-3-319-98207-6
101.
Kent G, Croucher R. Achieving oral health: the social context of dental care. 3rd ed. Edinburgh: Wright; 1998.
102.
Meechan JG, Robb ND, Seymour RA. Pain and anxiety control for the conscious dental patient. Oxford: Oxford University Press; 1998.
103.
Meechan JG, Robb ND, Seymour RA. Pain and anxiety control for the conscious dental patient [Internet]. Oxford: Oxford University Press; 2023. Available from: https://login.uofglasgow.idm.oclc.org/login?url=https://doi.org/10.1093/oso/9780192628497.001.0001
104.
Murray JJ, Nunn JH, Steele JG, editors. The prevention of oral disease [Internet]. 4th ed. Oxford: Oxford University Press; 2003. Available from: https://www.vlebooks.com/vleweb/product/openreader?id=GlasgowUni&isbn=9780191586897
105.
Scriven A, Ewles L, Simnett I. Ewles & Simnett’s Promoting health: a practical guide [Internet]. Seventh edition. Edinburgh: Elsevier; 2017. Available from: https://www.vlebooks.com/vleweb/product/openreader?id=GlasgowUni&isbn=9780702066948
106.
Lambden P. Dental law and ethics [Internet]. First edition. Boca Raton, FL: Taylor and Francis, an imprint of CRC Press; 2002. Available from: https://login.uofglasgow.idm.oclc.org/login?url=https://www.taylorfrancis.com/books/9781315375588
107.
Ramseier CA, Suvan JE. Health behavior change in the dental practice [Electronic resource]. Ames, Iowa: Wiley-Blackwell; 2010. Available from: https://login.uofglasgow.idm.oclc.org/login?url=https://onlinelibrary.wiley.com/book/10.1002/9781118786802
108.
Freeman R, Humphris G, Wilson NHF, Brunton PA. Communicating in dental practice: stress-free dentistry and improved patient care. Vol. 30. London: Quintessence; 2006.
109.
Chadwick BL, Hosey MT. Child taming: how to manage children in dental practice. Second edition. Vol. 9. London: Quintessence publishing; 2017.
110.
Seear J, Walters L. Law and ethics in dentistry. 3rd ed. Oxford: Wright; 1991.