BACKER, A. (1973). The study of politics: The Western tradition. McGraw-Hill.
Cita Chicago Style (17a ed.)BACKER, Andrew. The Study of Politics: The Western Tradition. New York: McGraw-Hill, 1973.
Cita MLA (9a ed.)BACKER, Andrew. The Study of Politics: The Western Tradition. McGraw-Hill, 1973.
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