Evaluation Research Society, Cook, T. D., & Reichardt, C. S. (1979). Qualitative and quantitative methods in evaluation research. Sage Publications.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रEvaluation Research Society, Thomas D. Cook, और Charles S. Reichardt. Qualitative and Quantitative Methods in Evaluation Research. Beverly Hills, Calif: Sage Publications, 1979.
एमएलए (9वां संस्करण) प्रशस्ति पत्रEvaluation Research Society, et al. Qualitative and Quantitative Methods in Evaluation Research. Sage Publications, 1979.
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