| title | ISBN-13 | year of publica- tion | |
|---|---|---|---|
| Newts Their Care in Captivity | 978-0-7938-0274-6 | 1994 | |
| Rotwangen Schmuckschildkröten und andere Schmuckschildkröten | 978-3-927997-87-5 | 1995 | |
| The Guide to Owning a Box Turtle | 978-0-7938-0251-7 | 1994 | |
| The Guide to Owning a Red-Eared Slider | 978-0-7938-0253-1 | 1994 |