Première conférence mondiale sur les parcs nationaux : compte rendu de la conférence
1965
Abeele, Marcel Van den |
Nature 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. |
Nordic countries' legislation on the environment with special emphasis on conservation : a survey
1980
Koester, Veit |
Wildlife for man : how and why we should conserve our species
1986
Fitter, Richard Sidney Richmond |
Nahuel Huapi action plan for protected areas of the neotropical realm = Plan de acción Nahuel Huapi para las áreas protegidas de la región neotropical
1986
Cardich, Eric |
Review of the protected areas system in the Afrotropical realm
1986
MacKinnon, John Ramsay |
MacKinnon, Kathy |