Sénégal : la conservation de la diversité biologique
1989
IUCN
The Hadejia-Nguru wetlands project : hydrology and sustainable resource development of a Sahelian floodplain wetland
1989
Adams, Bill |
Hollis, Ted |
Estrategia regional para el desarrollo sostenible de Bocos del Toro - Panama
1990
Alvarado, Ramón |
Imbach, Alejandro |
Madagascar : an environmental profile
1987
Jenkins, Martin |
Conservation for tropical rain forest in Liberia : recommendations for wildlife conservation and national parks
1983
Verschuren, Jacques |