Easton, D. (1953). Political System: An Inquiry into the State of Political Science (2nd ed.). Scientific book agency.
Styl ChicagoEaston, David. Political System: An Inquiry into the State of Political Science. 2nd ed. New York: Scientific book agency, 1953.
Citace podle MLAEaston, David. Political System: An Inquiry into the State of Political Science. 2nd ed. Scientific book agency, 1953.
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