APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

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

MLA (9th ed.) Citation

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