Collier, D., & Gerring, J. (2009). Concepts and method in social science: The tradition of Giovanni Sartori. Routledge.
Citace podle Chicago (17th ed.)Collier, David, a John Gerring. Concepts and Method in Social Science: The Tradition of Giovanni Sartori. New York: Routledge, 2009.
Citace podle MLA (9th ed.)Collier, David, a John Gerring. Concepts and Method in Social Science: The Tradition of Giovanni Sartori. Routledge, 2009.
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