Crosby, A. W. (1977). The columbian exchange: Biological and cultural consequences of 1942 (4a. ed.). Greenwood Press.
Citazione stile Chigago Style (17a edizione)Crosby, Alfred W. The Columbian Exchange: Biological and Cultural Consequences of 1942. 4a. ed. Santa Bárbara: Greenwood Press, 1977.
Citatione MLA (9a ed.)Crosby, Alfred W. The Columbian Exchange: Biological and Cultural Consequences of 1942. 4a. ed. Greenwood Press, 1977.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.