APA citiranje

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 citiranje

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

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