APA (7th ed.) Citation

Leiserson, A., Garceau, O., & Key, V. O. (1968). Political research and political theory. Harvard University Press.

Chicago Style (17th ed.) Citation

Leiserson, Avery, Oliver Garceau, and V. O. Key. Political Research and Political Theory. Cambridge: Harvard University Press, 1968.

MLA (9th ed.) Citation

Leiserson, Avery, et al. Political Research and Political Theory. Harvard University Press, 1968.