Biodiversity : social & ecological perspectives 1991 Shiva, Vandana | Anderson, Patrick | Schücking, Heffa | Gray, Andrew | Lohmann, Larry | Cooper, David |
Managing the world's forests : looking for balance between conservation and development 1992 Sharma, Narendra P. |
Sustainable agriculture in semi-arid areas : with special reference to the Tswapong Hills area in Botswana 1989 Manintveld, Kees |
Ecological grazing management : a development alternative for brittle environments - the case of Namibia 1989 Otzen, Uwe |
Transfrontier reserves for peace and nature : a contribution to human security 1993 Westing, Arthur H. |