Kellstedt, P. M., & Whitten, G. D. (2013). The fundamentals of political science research (Second edition.). Cambridge University Press.
Citazione stile Chigago Style (17a edizione)Kellstedt, Paul M., e Guy D. Whitten. The Fundamentals of Political Science Research. Second edition. Cambridge: Cambridge University Press, 2013.
Citatione MLA (8a ed.)Kellstedt, Paul M., e Guy D. Whitten. The Fundamentals of Political Science Research. Second edition. Cambridge University Press, 2013.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.