Crosby, A. W. (1972). The Columbian exchange;: Biological and cultural consequences of 1492. Westport, Conn.,: Greenwood Pub. Co..
Чикагска система за цитиранеCrosby, Alfred W. The Columbian Exchange;: Biological and Cultural Consequences of 1492. Westport, Conn.,: Greenwood Pub. Co., 1972.
MLA формат за цитиранеCrosby, Alfred W. The Columbian Exchange;: Biological and Cultural Consequences of 1492. Westport, Conn.,: Greenwood Pub. Co., 1972.
Внимание: Тези цитати може да не са 100% точни.