Cita APA (7th ed.)

Diamond, J. (1997). Guns, germs and steel: The fate of human societies (First edition.). W.W. Norton.

Cita Chicago (17th ed.)

Diamond, Jared. Guns, Germs and Steel: The Fate of Human Societies. First edition. New York: W.W. Norton, 1997.

Cita MLA (9th ed.)

Diamond, Jared. Guns, Germs and Steel: The Fate of Human Societies. First edition. W.W. Norton, 1997.