Robert Boardman. (1986). Pesticides in world agriculture. New York: St. Martin's Press.
Trích dẫn kiểu ChicagoRobert Boardman. Pesticides in World Agriculture. New York: St. Martin's Press, 1986.
MLA引文Robert Boardman. Pesticides in World Agriculture. New York: St. Martin's Press, 1986.
警告：這些引文格式不一定是100％准確.