| Titel | ISBN-13 (ISBN-10) | Erschei- nungsjahr | andere Autoren |
|---|---|---|---|
| National Parks and Protected Areas: Keystones to Conservation and Sustainable Development | 978-3-540-63527-7 (3-540-63527-0) | 1997 | James Gordon Nelson |
| National Parks and Protected Areas: Keystones to Conservation and Sustainable Development (Nato A.S.I. Series / Nato A.S.I. Subseries G: ) | 978-3-642-64603-4 (3-642-64603-4) | 1997 | " |