Wanlass,Lawrence C. (1961). Gettel's history of political thought (2nd ed.). London: George Allen & Unwin.
Chicago Stili AlıntıWanlass,Lawrence C. Gettel's History of Political Thought. 2nd ed. London: George Allen & Unwin, 1961.
MLA AlıntıWanlass,Lawrence C. Gettel's History of Political Thought. 2nd ed. London: George Allen & Unwin, 1961.
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