Procès-verbaux et rapports de la Réunion technique tenue à Caracas, du 3 au 9 septembre 1952 conjointement avec la troisième Assemblée générale de l'institution 1954
Etat de la protection de la nature dans le monde en 1950 = The position of nature protection throughout the world in 1950 1951
Proceedings and papers : International Technical Conference on the Protection of Nature, Lake Success, NY, 22-29 August 1949 1950 Harroy, Jean-Paul |
Preparatory documents to the International Technical Conference on the Protection of Nature, August 1949, United States 1949
International Union for the Protection of Nature established at Fontainebleau, 5 October 1948 1948 Bernard, Ch. J. |
Rapport sur la Conférence pour la protection internationale de la nature, Bâle, 30 juin au 7 juillet 1946 1946 Büttikofer, Johann |
Nature conservation in Lesotho : report on current progress and forward planning. Report of IUCN to the Government of Lesotho 1977
The distribution of protected areas in relation to the needs of biotic community conservation in eastern Africa : a paper presented at the Regional Meeting on Co-ordinated System of National Parks and Reserves in Eastern Africa, Serengeti National Park, T 1975 Lamprey, Hugh F. |