Citazione Stile APA (7a Edizione)

Diamond, J. M. (1999). Guns, germs, and steel: The fates of human societies (1st Norton pbk. ed.). W.W. Norton.

Citazione stile Chigago Style (17a edizione)

Diamond, Jared M. Guns, Germs, and Steel: The Fates of Human Societies. 1st Norton pbk. ed. New York: W.W. Norton, 1999.

Citatione MLA (9a ed.)

Diamond, Jared M. Guns, Germs, and Steel: The Fates of Human Societies. 1st Norton pbk. ed. W.W. Norton, 1999.