Cita APA (7a ed.)

Diamond, J. M. (1999). Guns, germs, and steel: The fates of human societies. Norton.

Cita Chicago Style (17a ed.)

Diamond, Jared M. Guns, Germs, and Steel: The Fates of Human Societies. New York: Norton, 1999.

Cita MLA (8a ed.)

Diamond, Jared M. Guns, Germs, and Steel: The Fates of Human Societies. Norton, 1999.