APA (7th ed.) Citation

Boyd, G., Rosenau, J. N., & Thompson, K. W. (1976). World politics: An introduction. Free Press.

Chicago Style (17th ed.) Citation

Boyd, Gavin, James N. Rosenau, and Kenneth W. Thompson. World Politics: An Introduction. New York: Free Press, 1976.

MLA (9th ed.) Citation

Boyd, Gavin, et al. World Politics: An Introduction. Free Press, 1976.