Nature conservation in Estonia : general data and protected areas
1994
Peterson, Kaja |
Jüssi, Fred |
Protected areas
Parcs nationaux et tourisme en Europe
1992
Richez, Gérard |
Conservation field training programme : manual for the instruction of protected area forest guards
1994
Johnsingh, A. J. T. |
Our national park system : caring for America's greatest natural and historic treasures
1995
Rettie, Dwight F. |
Serengeti II : dynamics, management, and conservation of an ecosystem
1995
Sinclair, A. R. E. |
Arcese, Peter |
The nature parks of France
1995
Delaforce, P. |