APA (7th ed.) Citation

Riley, C. L. (1969). The origins of civilization. Southern Illinois University Press.

Chicago Style (17th ed.) Citation

Riley, Carroll L. The Origins of Civilization. Carbondale: Southern Illinois University Press, 1969.

MLA (9th ed.) Citation

Riley, Carroll L. The Origins of Civilization. Southern Illinois University Press, 1969.

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