Kellstedt, P. M., & Whitten, G. D. (2013). The fundamentals of political science research (Second edition.). Cambridge University Press.
Chicago Style (17. basım) AtıfKellstedt, Paul M., ve Guy D. Whitten. The Fundamentals of Political Science Research. Second edition. Cambridge: Cambridge University Press, 2013.
MLA (8th ed.) AtıfKellstedt, Paul M., ve Guy D. Whitten. The Fundamentals of Political Science Research. Second edition. Cambridge University Press, 2013.
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