1990
Community Forestry: Herders' Decision-Making In Natural Resources Management In Arid And Semi-Arid Africa. Community Forestry Note No. 4. Rome: Food and Agriculture Organization of the United Nations. http://www.fao.org/3/t6260e/t6260e00.htm.
. 1990. “Traditional Crop Sparks New Interest As A Multipurpose Tree”. Agroforestry Today (Kenya) 2 (2): 4-7.
. 1990. 1989
Land And Water Strategy: Sustainable Development. A Summary Of Public Input: What You Told Us. [Winnipeg, MB]: Province of Manitoba. http://www.worldcat.org/oclc/29312143.
. 1989. Land And Water Strategy, The Process Begins: Workbook On Water. Winnipeg, MB: Provincial Government of Manitoba [Manitoba Natural Resources, Water Resources Branch]. http://www.worldcat.org/oclc/56232838.
. 1989. “Rural Development And The Careful Utilization Of Natural Resources In The Peruvian Sierra”. In Report On The Workshop-Seminar Held In Achoma (Arequipa), Peru, 31 March To 9 April 1987. Berlin, Germany: Deutsche Stiftung für Internationale Entwicklung (German Foundation for International Development). http://www.worldcat.org/oclc/243201934.
. 1989. Sustainable Development: Land And Water Strategy: A Summary Of Public Input. Winnipeg, MB: Provincial Government of Manitoba [Manitoba Natural Resources, Water Resources Branch].
. 1989. 1987
“Iita: Sustainable Systems”. African Farming: 50-51.
. 1987. 1985
“The Dinderesso Forestry School: Case Study Of Extension Forestry Training In Burkina Faso”. Rural Africana 23-24: 107-114.
. 1985. 1983
“Developing Sustainable Agroecosystems”. Bioscience 33 (1): 45-49. doi:10.2307/1309244. http://bioscience.oxfordjournals.org/content/33/1/45.
. 1983. “Machiguenga Gardens”. In Adaptive Responses Of Native Amazonians, 29-63. New York: Academic Press. http://www.worldcat.org/oclc/8827760.
. 1983. 1976
“Multiple Cropping In Tropical Asia”. In Multiple Cropping, 11-40. Madison, WI: ASA [American Society of Agronomy]. http://www.worldcat.org/oclc/842231973.
. 1976.