BRECHT, A. (1967). Political theory: The foundations of twenteth-century political thought. Princeton University Press.
Chicago Style (17th ed.) ZitazioaBRECHT, Arnold. Political Theory: The Foundations of Twenteth-century Political Thought. Princeton: Princeton University Press, 1967.
MLA (9th ed.) ZitazioaBRECHT, Arnold. Political Theory: The Foundations of Twenteth-century Political Thought. Princeton University Press, 1967.
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