T. R. · T. Roberts · T.T. · T. T. Roberts
| title | media type | ISBN-13 | year of publication |
|---|---|---|---|
| Contesting Spirit | Unbound | 978-1-4008-0652-2 | 2001 |
| Contesting Spirit | " | 978-1-4008-0655-3 | 2001 |
| Contesting Spirit | Hardcover | 978-0-691-05937-2 | 1998 |
| Contesting Spirit: Nietzsche, Affirmation, Religion | Paperback | 978-0-691-00127-2 | 1998 |