weeds

Altieri, Miguel A., and Matt Liebman. (1988) 1988. Weed Management in Agroecosystems: Ecological Approaches. Boca Raton, FL: CRC Press, Inc. http://www.worldcat.org/oclc/16682275.

Thurston, H. David, and Neil R. Miller. (1990) 1990. “Traditional Agriculture and Plant Pathology (TAPP) Database [ASCII Format for the Macintosh]”. Ithaca, NY: Cornell University Department of Plant Pathology.

Fujisaka, S. (1991) 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.

Altieri, Miguel A., Deborah K. Letourneau, and James R. Davis. (1983) 1983. “Developing Sustainable Agroecosystems”. BioScience 33 (1): 45-49. doi:10.2307/1309244.

Johnson, Allen, Raymond B. Hames, and William T. Vickers. (1983) 1983. “Machiguenga Gardens”. In Adaptive Responses of Native Amazonians, 29-63. New York: Academic Press. http://www.worldcat.org/oclc/8827760.