Ragin, C. C. (1987). The comparative method: Moving beyond qualitative and quantitative strategies. University of California Press.
Citace podle Chicago (17th ed.)Ragin, Charles C. The Comparative Method: Moving Beyond Qualitative and Quantitative Strategies. Berkeley: University of California Press, 1987.
Citace podle MLA (9th ed.)Ragin, Charles C. The Comparative Method: Moving Beyond Qualitative and Quantitative Strategies. University of California Press, 1987.
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