1992
“Pharmaceutical Discovery, Ethnobotany, Tropical Forests And Reciprocity: Integrating Indigenous Knowledge, Conservation And Sustainable Development”. In Sustainable Harvest And Marketing Of Rain Forest Products, 231-238 [1-12]. Washington, DC and Covelo, CA: Island Press. http://www.worldcat.org/oclc/231440749.
. 1992. Sustainable Harvest And Marketing Of Rain Forest Products. Washington, DC and Covelo, CA: Island Press. http://www.worldcat.org/oclc/24952705.
. 1992.