Surveys and demonstration for the management and development of Trisuli Watershed
1969
Caughley, Graeme |
Environmental law
Neka pitanja nacionalnih i regionalnih prirodnih parkova u Jugoslaviji
1978
Colic, Dusan B. |
National parks and equivalent reserves in Australia guide to legislation, administration and areas
1968
Mosley, J. G. |
Politique et législation pour la protection et la mise en valeur du Banc d'Arguin, Mauritanie : rapport préliminaire
1990
Matthes, H. (Hubert) |
Hatti, Maurice |
Mekouar, Mohamed Ali |