APA (7th ed.) Citation

León, J. (1974). Handbook of plant introduction in tropical crops. Food and Agriculture Organization of the United Nations ; [Sold by] UNIPUB.

Chicago Style (17th ed.) Citation

León, J. Handbook of Plant Introduction in Tropical Crops. Rome : New York: Food and Agriculture Organization of the United Nations ; [Sold by] UNIPUB, 1974.

MLA (9th ed.) Citation

León, J. Handbook of Plant Introduction in Tropical Crops. Food and Agriculture Organization of the United Nations ; [Sold by] UNIPUB, 1974.