J. S. · R.J. · R. S. · Ruth J.
Rowman & Littlefield Publishers · Wiley-Blackwell
| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Exploitation; What It Is and Why It's Wrong | 978-0-7425-1367-9 (0-7425-1367-X) | 2003 |
| Philosophy: The Big Questions | 978-1-4051-0827-0 (1-4051-0827-4) | 2004 |