Botswana notes and records : proceedings of the Conference on su stained production from sem-arid areas (Gaborone : Botswana Society, 1971)
The Conference was organised by the Botswana Society at the request of the government of the Republic of Botswana and with finacial assist ance provided by the Secretary General of the United Nations Conference on the human environment
Keywords: Environmentally sensitive areas -- Congresses