Evaluation Research Society, Cook, T. D., & Reichardt, C. S. (1979). Qualitative and quantitative methods in evaluation research. Sage Publications.
Citace podle Chicago (17th ed.)Evaluation Research Society, Thomas D. Cook, a Charles S. Reichardt. Qualitative and Quantitative Methods in Evaluation Research. Beverly Hills, Calif: Sage Publications, 1979.
Citace podle MLA (9th ed.)Evaluation Research Society, et al. Qualitative and Quantitative Methods in Evaluation Research. Sage Publications, 1979.
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