Cita APA (7th ed.)

Ruddiman, W. F. (2008). Earth's climate: Past and future (2nd ed.). W.H. Freeman.

Cita Chicago (17th ed.)

Ruddiman, William F. Earth's Climate: Past and Future. 2nd ed. New York: W.H. Freeman, 2008.

Cita MLA (9th ed.)

Ruddiman, William F. Earth's Climate: Past and Future. 2nd ed. W.H. Freeman, 2008.

Atenció: Aquestes cites poden no estar 100% correctes.