APA Edition Citation

Easton, D. (1971). The political system: An inquiry into the state of political science (2nd ed.). Scientific book agency.

Chicago Edition Citation

Easton, David. The Political System: An Inquiry into the State of Political Science. 2nd ed. Calcutta: Scientific book agency, 1971.

MLA Edition Citation

Easton, David. The Political System: An Inquiry into the State of Political Science. 2nd ed. Scientific book agency, 1971.