Rapport sur la Conférence pour la protection internationale de la nature, Bâle, 30 juin au 7 juillet 1946
1946
Büttikofer, Johann |
Conservation
Nature conservation in the Pacific : proceedings of symposium A-10, XII Pacific Science Congress, August-September 1971, Canberra, Australia
1973
Costin, A. B. |
Groves, R. H. |
Wildlife conservation in West Africa : proceedings of the symposium held at the University of Ibadan, Nigeria, during the Seventh Biennial Conference of the West African Science Association of 2 April 1970
1971
Happold, D. C. D. |
The importance and values of wild plants and animals in Africa
1981
Sale, J. B. (John Benjamin) |
Environmental education about the rain forest
1984
Berkmüller, Klaus |
Torres, Hernán |
Why conservation?
1984
Salim, Emil |