APA (7th ed.) Citation

Diamond, J. M. (2017). Guns, germs, and steel: The fates of human societies (20th Anniversary edition.). W.W. Norton & Company.

Chicago Style (17th ed.) Citation

Diamond, Jared M. Guns, Germs, and Steel: The Fates of Human Societies. 20th Anniversary edition. New York: W.W. Norton & Company, 2017.

MLA (9th ed.) Citation

Diamond, Jared M. Guns, Germs, and Steel: The Fates of Human Societies. 20th Anniversary edition. W.W. Norton & Company, 2017.