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.
ציטוט MLARobert Boardman. Pesticides in World Agriculture. New York: St. Martin's Press, 1986.
אזהרה: ציטוטים אלה לעיתים לא מדויקים ב 100%.