APA (7th ed.) Citation

Ponting, C. (1992). A green history of the world: The environment and the collapse of great civilizations (1. U.S. ed.). St. Martin's Press.

Chicago Style (17th ed.) Citation

Ponting, Clive. A Green History of the World: The Environment and the Collapse of Great Civilizations. 1. U.S. ed. New York: St. Martin's Press, 1992.

MLA (9th ed.) Citation

Ponting, Clive. A Green History of the World: The Environment and the Collapse of Great Civilizations. 1. U.S. ed. St. Martin's Press, 1992.