APA

Conference on Soil Conservation and Management in the Humid Tropics, . (1977). Sil conservation and management in the humid tropics. New York: John Wiley and Sons.

Chicago

Conference on Soil Conservation and Management in the Humid Tropics, . 1977. Sil conservation and management in the humid tropics. New York: John Wiley and Sons.

Harvard

Conference on Soil Conservation and Management in the Humid Tropics, . (1977). Sil conservation and management in the humid tropics. New York: John Wiley and Sons.

MLA

Conference on Soil Conservation and Management in the Humid Tropics, . Sil conservation and management in the humid tropics. New York: John Wiley and Sons. 1977.