| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| All the Small and Medium-Sized tortoises | 978-1-888089-08-0 (1-888089-08-3) | 1997 |
| The Small and Medium-Sized Tortoises | 978-1-888089-25-7 (1-888089-25-3) |
C.P. · R. C. · R. P. · R. Paull · Richard C. · Richard C. Paull · Richard Cary · Richard P.