APA (7th ed.) Zitazioa

Easton, D. (1953). The political system: An inquiry into the state of political science. Alfred A. Knopf.

Chicago Style (17th ed.) Zitazioa

Easton, David. The Political System: An Inquiry into the State of Political Science. Nueva York: Alfred A. Knopf, 1953.

MLA (9th ed.) Zitazioa

Easton, David. The Political System: An Inquiry into the State of Political Science. Alfred A. Knopf, 1953.