1991
“A Diagnostic Survey Of Shifting Cultivation In Northern Laos: Targeting Research To Improve Sustainability And Productivity”. Agroforestry Systems 13 (2): 95-109. doi:10.1007/BF00140235. https://doi.org/10.1007/BF00140235.
. 1991. 1990
“Traditional Agriculture And Plant Pathology (Tapp) Database [Ascii Format For The Macintosh]”. Ithaca, NY: Cornell University Department of Plant Pathology.
. 1990. 1988
Weed Management In Agroecosystems: Ecological Approaches. Boca Raton, FL: CRC Press, Inc. http://www.worldcat.org/oclc/16682275.
. 1988. 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.