[1] 2. UNESCO/UNEP Regional Conference on Desertification Control and Natural Resources Management: Case Studies from SADC Countries and United Nations Environment Programme and UNESCO Regional Office for Education in Africa (Senegal) and T. Smith and E. Wangari, "Desertification control and natural resources management: case studies from SADC countries: general report ," BREDA, 1997.

UNESCO/UNEP Regional Conference on Desertification Control and Natural Resources Management: Case Studies from SADC Countries, 2nd, Bulawayo, Zimbabwe, 1996 and United Nations Environment Programme and UNESCO Regional Office for Education in Africa (Senegal) and Smith, Tim and Wangari, Elizabeth O., "Desertification control and natural resources management: case studies from SADC countries: general report ," BREDA, 1997.

UNESCO/UNEP Regional Conference on Desertification Control and Natural Resources Management: Case Studies from SADC Countries, 2., United Nations Environment Programme, UNESCO Regional Office for Education in Africa (Senegal), Smith, T., Wangari, E., (1997). "Desertification control and natural resources management: case studies from SADC countries: general report," BREDA.

UNESCO/UNEP Regional Conference on Desertification Control and Natural Resources Management: Case Studies from SADC Countries, 2nd, Bulawayo, Zimbabwe, 1996, United Nations Environment Programme, UNESCO Regional Office for Education in Africa (Senegal), Smith, Tim, Wangari, Elizabeth O.. (1997). "Desertification control and natural resources management: case studies from SADC countries: general report," BREDA.