| title | media type | ISBN-13 | year of publica- tion | other author(s) |
|---|---|---|---|---|
| Angels & Entreprenuers: The standard reference for people considering Angel investing | Paperback | 978-1-907722-59-2 | 2011 | |
| Challenges to Morality | " | 978-0-02-350591-1 | 1993 | |
| Ethics, | " | 978-0-06-046345-8 | 1968 | Philippa Foot · P. T. Geach · Alan Gewirth · John Rawls · G. E. M. Anschombe · J. J. Smart · Arnold Isenberg, et. al. Colin Strang |
| Hume's Moral Epistemology | " | 978-0-19-875037-6 | 1976 | |
| Hume's Theory of Justice | Hardcover | 978-0-19-824619-0 | 1980 | |
| Naked Being: Undressing Your Mind, Transforming Your Life | Paperback | 978-1-84694-303-4 | 2010 | |
| Our Knowledge of Right and Wrong | " | 978-0-415-84910-4 | 2013 | |
| Our Knowledge of Right and Wrong | Hardcover | 978-0-04-170025-1 | 1971 | |
| Our knowledge of right and wrong | " | 978-0-391-00096-4 | 1971 | |
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