The raw ivory trade 1979-1987 : a consultant report for Parties to the Convention on Trade in Endangered Species of Wild Fauna and Flora through the Secretary General 1989 Parker, I. S. C. (Ian S. C.) |
A projection of ivory production and its implications for the conservation of African elephants : CSIRO consultancy report to CITES 1998 Caughley, Greame |
Guide d'identification de l'ivoire et de ses substituts 1991 Espinoza, Edgard O. | Mann, Mary-Jacque |
Eléphants d'Afrique, CITES et commerce de l'ivoire 1986 Martin, R. B. | Caldwell, J. R. | Barzdo, J. G. |
Regional perspectives and situation regarding elephant conservation and the ivory trade. Background documents 1990 Poole, Joyce H. | Nsanjama, Henri | Hall-Martin, Anthony | Alers, Marcel | Barnes, R. F. W. | Blom, Allard | Sournia, Gérard | Caldwell, J. R. | Luxmoore, R. A. |