Craig, Edward. 2020. Philosophy: A Very Short Introduction. 2nd edn. Oxford: Oxford University Press. https://ezproxy.lib.gla.ac.uk/login?url=https://dx.doi.org/10.1093/actrade/9780198861775.001.0001.
Crisp, Roger and Ebooks Corporation Limited. 1997. Routledge Philosophy Guidebook to Mill on Utilitarianism. Vol. Routledge philosophy guidebooks. London: Routledge. https://ebookcentral.proquest.com/lib/gla/detail.action?docID=170060.
Driver, Julia and Ebooks Corporation Limited. 2006. Ethics: The Fundamentals. Vol. 1. Malden, Massachusetts: Blackwell Publishing. https://ebookcentral.proquest.com/lib/gla/detail.action?docID=1204064.
Hume, David, and Richard H. Popkin. 1998. Dialogues Concerning Natural Religion: The Posthumous Essays, Of the Immortality of the Soul, and Of Suicide, from An Enquiry Concerning Human Understanding, Of Miracles. 2nd ed. Indianapolis: Hackett Publishing Company. https://uws-primo.hosted.exlibrisgroup.com/primo-explore/fulldisplay?docid=44PAI_ALMA2118846350003931&context=L&vid=44PAI_V1&search_scope=default_scope&tab=default_tab〈=en_US〈=en_US〈=en_US〈=en_US〈=en_US〈=en_US〈=en_US〈=en_US.
Mill, John Stuart, and Roger Crisp. 1998. Utilitarianism. Vol. Oxford philosophical texts. Oxford: Oxford University Press. https://ezproxy.lib.gla.ac.uk/login?url=https://search.ebscohost.com/login.aspx?direct=true&db=nlebk&AN=12417&site=ehost-live.
Moore, G. E. 1993. Principia Ethica. 2nd ed. Cambridge: Cambridge University Press. https://uws-primo.hosted.exlibrisgroup.com/primo-explore/fulldisplay?docid=44PAI_ALMA2116377800003931&context=L&vid=44PAI_V1&search_scope=default_scope&tab=default_tab〈=en_US〈=en_US〈=en_US〈=en_US〈=en_US〈=en_US〈=en_US〈=en_US〈=en_US〈=en_US.
Taliaferro, Charles. 2011. Aesthetics: A Beginner’s Guide (Beginner’s Guides). Oneworld Publications. https://uws-primo.hosted.exlibrisgroup.com/primo-explore/fulldisplay?docid=44PAI_ALMA2137006700003931&context=L&vid=44PAI_V1&search_scope=default_scope&tab=default_tab〈=en_US〈=en_US〈=en_US〈=en_US〈=en_US〈=en_US〈=en_US〈=en_US&lang=en_US.