APA aipamena

Easton, D. (1953). Political system: Inquiry in to the state of political science. Alfred A Knopf Inc..

Chicago Style aipamena

Easton, David. Political System: Inquiry in to the State of Political Science. Alfred A Knopf Inc., 1953.

MLA aipamena

Easton, David. Political System: Inquiry in to the State of Political Science. Alfred A Knopf Inc., 1953.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.