APA (7th ed.) Citation

Eckstein, H., & Apter, D. E. (1963). Comparative politics: A reader. The Press.

Chicago Style (17th ed.) Citation

Eckstein, Harry, and David E. Apter. Comparative Politics: A Reader. New York: The Press, 1963.

MLA (9th ed.) Citation

Eckstein, Harry, and David E. Apter. Comparative Politics: A Reader. The Press, 1963.