Easton, D. (1971). The political system: An inquiry into the state of political science. Scientific Book Agency.
Цитирование в стиле Чикаго (17-е изд.)Easton, David. The Political System: An Inquiry into the State of Political Science. Scientific Book Agency, 1971.
Цитирование MLA (9-е изд.)Easton, David. The Political System: An Inquiry into the State of Political Science. Scientific Book Agency, 1971.
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