Marine parks for Tanzania : results of a survey of the coast of Tanzania by invitation of the trustees of Tanzania national parks
1968
Ray, G. Carleton |
Conservation Foundation, US
Human conflict in conservation : protected areas, the Indian experience
1989
Dang, Himraj |
Desarrollo socioeconómico y el ambiente natural de Costa Rica : situación actual y perspectivas
1988
Solera, Alonso Ramirez |
Ulloa, Tirso Maldonado |