1995
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1994
. 1994. “Farmer Knowledge And Experimentation With Trees And Tree Cultivation In Agroforestry Systems In Rwanda”. East Lansing, MI: Michigan State University, Department of Forestry. http://www.worldcat.org/oclc/33975106.
. 1994. “Indigenous Knowledge And Sustainable Agricultural And Rural Development: Policy Issues And Strategies For The Indisco Programme Of The Ilo”. In Paper Presented At Indisco Sub-Regional Technical Review Meeting, December 13-16, 1994, Chiang Mai, Thailand. Chiang Mai, Thailand.
1993
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1990
. 1990. Conserving The World's Biological Diversity. Gland, Switzerland and Washington, DC: International Union for Conservation of Nature and Natural Resources; World Resources Institute; Conservation International; World Wildlife Fund-US; World Bank. http://www.worldcat.org/oclc/21193600.
1987
. 1987. “Managing Natural Resources For Sustainability”. In Sustainability Issues In Agricultural Development: Proceedings Of The Seventh Agriculture Sector Symposium, 167-181. Washington, DC: World Bank. http://www.worldcat.org/oclc/925356016.
. 1987. “Notes And Reflections On The Workshop On Farmers And Agricultural Research: Complementary Methods”. In Paper Presented At Ids Workshop On Farmers And Agricultural Research: Complementary Methods, July 26-31, 1987, University Of Sussex. University of Sussex: Brighton, UK.
