APA (7th ed.) Citation

Clark, G. (1961). World prehistory: An outline. Cambridge university Press.

Chicago Style (17th ed.) Citation

Clark, Grahame. World Prehistory: An Outline. New York: Cambridge university Press, 1961.

MLA (9th ed.) Citation

Clark, Grahame. World Prehistory: An Outline. Cambridge university Press, 1961.

Warning: These citations may not always be 100% accurate.