| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Legislation on Wildlife and Protected Areas in Africa | 978-92-5-101171-3 (92-5-101171-0) | 1985 |
| Legislation on wildlife, hunting, and protected areas in some European countries | 978-92-5-100878-2 (92-5-100878-7) | 1980 |