Citazione Stile APA (7a Edizione)

Diamond, J. M. (1997). Guns, germs, and steel: The fates of human societies. W.W. Norton & Co.

Citazione stile Chigago Style (17a edizione)

Diamond, Jared M. Guns, Germs, and Steel: The Fates of Human Societies. New York: W.W. Norton & Co, 1997.

Citatione MLA (9a ed.)

Diamond, Jared M. Guns, Germs, and Steel: The Fates of Human Societies. W.W. Norton & Co, 1997.