APA (7th ed.) Zitazioa

Easton, D. (1979). A framework for political analysis. University of Chicago Pr..

Chicago Style (17th ed.) Zitazioa

Easton, David. A Framework for Political Analysis. Chicago: University of Chicago Pr., 1979.

MLA (9th ed.) Zitazioa

Easton, David. A Framework for Political Analysis. University of Chicago Pr., 1979.