Tropical and subtropical agriculture/ J.J. Ochse...[etal.] - New York: Macmillan, 1961 - 2v.: ill.; 23 cm. Includes index Vol. 1, 1961-v. 2, 1961. ISBN: $ 35.00 Subjects--Topical Terms: Tropical cropsTropical plantsSoil conservationClimateCropsAgriculture--Tropics Dewey Class. No.: 631.0913