León, J., & Withers, L. A. (1986). Guidelines for seed exchange and plant introduction in tropical crops. Food and Agriculture Organization of the United Nations.
Chicago Style (17th ed.) CitationLeón, Jorge, and Lyndsey A. Withers. Guidelines for Seed Exchange and Plant Introduction in Tropical Crops. Rome: Food and Agriculture Organization of the United Nations, 1986.
MLA (9th ed.) CitationLeón, Jorge, and Lyndsey A. Withers. Guidelines for Seed Exchange and Plant Introduction in Tropical Crops. Food and Agriculture Organization of the United Nations, 1986.
Warning: These citations may not always be 100% accurate.