P. H. · Peer Hanslik · Perry Henzell
| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Between the Two Extremes: Dereliction and Over-use: How Shall the Land Be Managed So as to Benefit the Wildlife, the Countryside and the Landscape? | 978-92-871-2701-3 (92-871-2701-8) | 1995 |
| Protected Areas: Centres for Propagating a General Nature Conservation Policy | 978-92-871-3658-9 (92-871-3658-0) | 1998 |