1987
. 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.
. 1987. “Seeing The Forest For The Trees”. In Paper Presented At Farming Systems Research Symposium: How Systems Work, October 18-21, 1987. University of Arkansas.
. 1987. “Unraveling Another Mayan Mystery”. Discover.
1988
. 1988. Agroforestry Practices In Selected Areas Of Burma: Preliminary Consultant, Winrock International.. Multipurpose Tree Species Network Research Series No. 5. Bangkok, Thailand; Arlington, VA: Winrock International Institute for Agricultural Development and Forestry / Fuelwood Research and Development Project (F/FRED). http://www.worldcat.org/oclc/796896399.
. 1988. “Fairness In Irrigation Development”. Agriculture And Human Values 5 (1-2): 61-68. doi:10.1007/BF02217177. http://link.springer.com/article/10.1007/BF02217177.
. 1988. “Grassroots Conservation: Veld Products And People”. African Wildlife 43 (6): 286-293.
. 1988. Indigenous Peoples And Tropical Forests: Models Of Land Use And Management From Latin America. Cultural Survival Report No. 27. Cambridge, MA: Cultural Survival, Inc. http://www.worldcat.org/oclc/249738828.
. 1988. “Integration And Role Of Planted Trees In A Bush-Fallow Cultivation System In Central Zambia”. Agroforestry Systems 7 (1): 63-76. doi:10.1007/BF01890470. https://doi.org/10.1007/BF01890470.
. 1988. Potential Impact Of Biotechnology Research For Multipurpose Tree Species. Multipurpose Tree Species Network Research Series Paper 3. Bangkok, Thailand and Los Banos, Philippines: Winrock International. http://www.worldcat.org/oclc/24597957.
. 1988. Traditional Knowledge And Renewable Resource Management In Northern Regions. Occasional Publication (Boreal Institute For Northern Studies); No. 23. Edmonton, AB, Canada: IUCN Commission on Ecology and the Canadian Circumpolar Institute, Boreal Institute for Northern Studies. http://www.worldcat.org/oclc/658935111.
1989
. 1989. Agroforestry In Sub-Saharan Africa: A Farmer's Perspective. World Bank Technical Paper No. 112. Washington, DC: World Bank. http://www.worldcat.org/oclc/20630167.
. 1989. “The Agroforestry Outreach Project In Haiti: A Case Study For Project Design”. Washington, DC: Pan American Development Foundation.
. 1989. Agroforestry Projects For Small Farmers: A Project Manager's Reference. A.i.d. Evaluation Special Study No. 59. Washington, DC: U.S. Agency for International Development. http://pdf.usaid.gov/pdf_docs/PNAAX212.pdf.
. 1989. Farmer First: Farmer Innovation And Agricultural Research. London: Intermediate Technology Publications. doi:10.3362/9781780440149. http://www.worldcat.org/oclc/20444797.
. 1989. “Local Knowledge For Agroforestry And Native Plants”. In Farmer First: Farmer Innovation And Agricultural Research, 14-24. London: Intermediate Technology Publications. http://www.worldcat.org/oclc/20444797.
. 1989. “The Management Of Common Property Natural Resources: Some Conceptual And Operational Fallacies”. World Bank Discussion Papers 57. Washington, DC: The World Bank. http://documents.worldbank.org/curated/en/548811468740174575/The-management-of-common-property-natural-resources-some-conceptual-and-operational-fallacies.
. 1989. “Njukiine Forest: Transformation Of A Common-Property Resource”. Forest & Conservation History 35 (4): 160-168. doi:10.2307/3983495. http://www.jstor.org/stable/3983495.
. 1989. “The Social Sciences In Asian Forestry Curricula: Papers From The Workshop Held November 27-December 2, 1988 In Khon Kaen, Thailand”. Morillton, AR: Winrock International. http://www.worldcat.org/oclc/35213137.
. 1989. User Groups As Producers In Participatory Afforestation Strategies. Cambridge, MA: Harvard Institute for International Development.
1990
. 1990. “Genetic Resource Conservation And Utilization In The Context Of International Development”. Diversity 6 (1): 18-21.
. 1990. “A Grounded Theory Describing Factors In The Adoption Process Of The Alley Farming Technology By Yoruba Women In Nigeria”. Ames: Iowa State University. doi:https://doi.org/10.31274/rtd-180813-10310. https://lib.dr.iastate.edu/cgi/viewcontent.cgi?article=12247&context=rtd.
. 1990. “Haiti Agroforestry Outreach Project Extension 1987-1989: Final Report”. Washington, DC: Pan American Development Foundation.
. 1990. “Land Use, Soil Loss, And Sustainable Agriculture In Rwanda”. Human Ecology 18 (2): 147-161. doi:10.1007/BF00889179.
