APA

National Academy of Sciences, . (1979). Tropical legumes. Washington: National Academy of Sciences.

Chicago

National Academy of Sciences, . 1979. Tropical legumes. Washington: National Academy of Sciences.

Harvard

National Academy of Sciences, . (1979). Tropical legumes. Washington: National Academy of Sciences.

MLA

National Academy of Sciences, . Tropical legumes. Washington: National Academy of Sciences. 1979.