Cook, T. D., & Reichardt,Charles S. (1979). Qualitative and quantitative methods in evaluation research. Sage publications.
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Dyfyniad Arddull Chicago
Cook, Thomas D., and Reichardt,Charles S. Qualitative and Quantitative Methods in Evaluation Research. London: Sage publications, 1979.
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Dyfyniad MLA
Cook, Thomas D., and Reichardt,Charles S. Qualitative and Quantitative Methods in Evaluation Research. Sage publications, 1979.
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Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.