Brecht, A. (1959). Political theory: The foundations of twentieth-century political thought. Princeton University Press.
Chicago-viite (17. p.)Brecht, Arnold. Political Theory: The Foundations of Twentieth-century Political Thought. Princeton, N.J.: Princeton University Press, 1959.
MLA-viite (8. p.)Brecht, Arnold. Political Theory: The Foundations of Twentieth-century Political Thought. Princeton University Press, 1959.
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