Παραπομπή APA

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

Παραπομπή Chicago Style

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

Παραπομπή MLA

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

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