Naturlenhrpfade in Österreich
1987
Parz-Gollner, Rosemarie |
Nature conservation
Antarctic protected areas : future options
1986
Keage, P. L. (Peter Lawson) |
The organisation of nature protection in the various countries
1938
Brouwer, G. A. |
Wildlife conservation and development in Saudi Arabia : proceedings of the first symposium, Riyadh, February 1987
1989
Abu-Zinada, A. H. |
Goriup, Paul D. |
Hader, Iyad A. |
Natura, ús o abús? : llibre blanc de la gestió de la natura als països Catalans
1976
Folch i Guillén, Ramon |
Nature preservation in Surinam
1971
Schulz, J. P. |
Wilderness management
1978
Hendee, John C. |
Stankey, George H. |
Lucas, Robert C. |
The role of corridors
1991
Saunders, Denis A. |
Hobbs, R. J. (Richard J.) |
Biological invasions : a global perspective
1989
Drake, J. A. |