United States National Research Council. Committee on Sustainable Agriculture and the Environment in the Humid Tropics. Sustainable Agriculture and the Environment in the Humid Tropics. Washington, D.C.: National Academy Press, 1993.

United States National Research Council. Committee on Sustainable Agriculture and the Environment in the Humid Tropics. Sustainable Agriculture and the Environment in the Humid Tropics. Washington, D.C.: National Academy Press, 1993.