1.
McConnell, P.: Primrose McConnell’s the agricultural notebook. Blackwell Science (2003).
2.
Lucas, J.S., Southgate, P.: Aquaculture : farming aquatic animals and plants. Fishing News (2012).
3.
Mason, J.: Sustainable Agriculture. CSIRO (2003).
4.
Herman, P., Kuper, R.: Food for thought: towards a future for farming. Pluto Press (2003).
5.
Evans, J.: The forests handbook. Blackwell Science (2001).
6.
Kaiser, M.J.: Marine ecology: processes, systems and impacts. Oxford University Press (2011).
7.
Overton, M.: BBC - History - British History in depth: Agricultural Revolution in England 1500 - 1850, http://www.bbc.co.uk/history/british/empire_seapower/agricultural_revolution_01.shtml.
8.
EUROPA - EU institutions and other bodies, http://europa.eu/about-eu/institutions-bodies/.
9.
EUROPA - European Commission, http://europa.eu/about-eu/institutions-bodies/european-commission/.
10.
EUROPA - European Parliament, http://europa.eu/about-eu/institutions-bodies/european-parliament/.
11.
EUROPA - Council of the European Union, http://europa.eu/about-eu/institutions-bodies/council-eu/index_en.htm.
12.
European Commission: Legal proposals for the CAP after 2013 - Agriculture and rural development, http://ec.europa.eu/agriculture/cap-post-2013/legal-proposals/index_en.htm.
13.
Scottish Government: SRDP Land Managers Options Available Options, http://www.scotland.gov.uk/Topics/farmingrural/SRDP/Land-Managers-Options/Availableoptions.
14.
Scottish Government: SRDP Dumfries & Galloway - Regional Priorities, http://www.scotland.gov.uk/Topics/farmingrural/SRDP/RuralPriorities/DumfriesandGalloway.
15.
The UK Forestry Standard, http://www.forestry.gov.uk/theukforestrystandard.
16.
Europa: The EU forestry strategy, http://europa.eu/legislation_summaries/environment/nature_and_biodiversity/l60040_en.htm.
17.
United Nations. General Assembly: A/CONF.151/26 (Vol. III)  Forest Principles, http://www.un.org/documents/ga/conf151/aconf15126-3annex3.htm.
18.
Agenda 21 - Chapter 11: Combating Deforestation, Earth Summit, 1992, http://habitat.igc.org/agenda21/a21-11.htm.
19.
United Nations: United Nations Framework Convention on Climate Change, http://unfccc.int/resource/docs/convkp/conveng.pdf.
20.
The Convention on Biological Diversity, http://www.cbd.int/convention/.
21.
Council of Europe: Forest Reproductive Material Directive : COUNCIL DIRECTIVE 1999/105/EC of 22 December 1999 on the marketing of forest reproductive material. Official Journal of the European Communities.
22.
Programme for the Endorsement of Forest Certification, http://www.pefc.org/.
23.
European Commission: Regional fisheries management organisations (RFMOs) - Fisheries - European Commission, http://ec.europa.eu/fisheries/cfp/international/rfmo/index_en.htm.
24.
Total Allowable Catch EU Regulation - COUNCIL REGULATION (EEC) No 170/83 of 25 January 1983 establishing a Community system for the conservation and management of fishery resources. Official journal of the European Communities.
25.
European Commission: Reform of the common fisheries policy - Fisheries - European Commission, http://ec.europa.eu/fisheries/reform/index_en.htm.
26.
Edwards, A.C., Sinclair, A.H., Domburg, P.: Identification, designation and formulation of an action plan for a nitrate vulnerable zone: a case study of the Ythan catchment, NE Scotland. European Journal of Agronomy. 20, 165–172 (2003). https://doi.org/10.1016/S1161-0301(03)00065-0.
27.
Wright, R.T., Boorse, D.F.: Environmental science: towards a sustainable future. Pearson Education (2010).
28.
European Commission: The EU Nitrates Directive, http://ec.europa.eu/environment/pubs/pdf/factsheets/nitrates.pdf.
29.
Scottish Government: NVZ Map page for Scotland - Nitrate Vulnerable Zones 2003, http://www.scotland.gov.uk/Topics/farmingrural/Agriculture/Environment/NVZintro/NVZmap1.
30.
European Commission: Implementation of nitrates Directive - Environment - European Commission, http://ec.europa.eu/environment/water/water-nitrates/index_en.html.
31.
World Health Organisation: WHO | Water-related diseases: Methaemoglobinemia, http://www.who.int/water_sanitation_health/diseases/methaemoglob/en/.
32.
PhysicalGeography.net: The Nitrogen Cycle, http://www.physicalgeography.net/fundamentals/9s.html.
33.
FAO: Technical paper 1: Soil classification and characterization, http://www.fao.org/wairdocs/ilri/x5546e/x5546e04.htm#1.4%2520the%2520faounesco%2520system.
34.
United States. Department of Agriculture. Natural Resources Conservation Service: National Soil Survey Handbook | NRCS Soils, http://soils.usda.gov/technical/handbook/.
35.
Mason, J.: Sustainable Agriculture. CSIRO (2003).
36.
McConnell, P.: Primrose McConnell’s the agricultural notebook. Blackwell Science (2003).
37.
Exotic pest alert: horse chestnut leaf miner, http://www.forestry.gov.uk/pdf/horsechestnut.pdf/$FILE/horsechestnut.pdf.
38.
EU Council Decision: Emergency measures to prevent the introduction into the Union of Anoplophora chinensis, http://eur-lex.europa.eu/LexUriServ/LexUriServ.do?uri=OJ:L:2010:174:0046:0050:EN:PDF.
39.
Evans, J.: The forests handbook. Blackwell Science (2001).
40.
Forestry Commission - Plant health - Pests and diseases, http://www.forestry.gov.uk/pestsanddiseases.
41.
Global Forest Resources Assessment - Chapter 6, http://www.fao.org/forestry/fra/41555/en/.
42.
Cannon, R.: Gypsy moth, Lymantria dispar, outbreak in northeast London, 1995 – 2003. 50,.
43.
Furth, L.: Genetic Modification. Independence Educ Pub (2011).
44.
Furth, L.: A genetically modified future. Independence (2007).
45.
Pilon-Smits, E.: Phytoremediation. Annual Review of Plant Biology. 56, 15–39 (2005). https://doi.org/10.1146/annurev.arplant.56.032604.144214.
46.
Wright, R.T., Boorse, D.F.: Environmental science: towards a sustainable future. Pearson Education (2011).
47.
Qaim, M.: The Economics of Genetically Modified Crops. Annual Review of Resource Economics. 1, 665–694 (2009). https://doi.org/10.1146/annurev.resource.050708.144203.
48.
Mieszkowska, N., Sims, D., Hawkins, S.: Fishing, climate change and north-east Atlantic cod stocks. (2007).
49.
Weldon, J.: The Atlantic Cod: The Potential For Farming In Shetland - The Fish Site, http://www.thefishsite.com/articles/163/the-atlantic-cod-the-potential-for-farming-in-shetland.
50.
Wright, R.T., Boorse, D.F.: Environmental science: towards a sustainable future. Pearson Education (2011).
51.
Sea Around Us Project, http://www.seaaroundus.org/.
52.
FAO Fisheries & Aquaculture -   Home  , http://www.fao.org/fishery/en.