APA引文

Gordon Wrigley. (1981). Tropical agriculture: The development of production. London: Longman.

Trích dẫn kiểu Chicago

Gordon Wrigley. Tropical Agriculture: The Development of Production. London: Longman, 1981.

MLA引文

Gordon Wrigley. Tropical Agriculture: The Development of Production. London: Longman, 1981.

警告：这些引文格式不一定是100％准确.