| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Ethical Vegetarianism: From Pythagoras to Peter Singer | 978-0-7914-4044-5 (0-7914-4044-3) | 1999 | Kerry Walters |
| Religious Vegetarianism: From Hesiod to the Dalai Lama | 978-0-7914-4972-1 (0-7914-4972-6) | 2001 | " |