APA (7th ed.) Citation

Easton, D. (1967). The political system: An inquiry into the state of political science (Repr.). Knopf.

Chicago Style (17th ed.) Citation

Easton, David. The Political System: An Inquiry into the State of Political Science. Repr. New York: Knopf, 1967.

MLA (9th ed.) Citation

Easton, David. The Political System: An Inquiry into the State of Political Science. Repr. Knopf, 1967.