Cooley, W. W., & Lohnes, P. R. (1976). Evaluation research in education. Irvington Publishers : distributed by Halsted Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रCooley, William W., और Paul R. Lohnes. Evaluation Research in Education. New York: Irvington Publishers : distributed by Halsted Press, 1976.
एमएलए (8वां संस्करण) प्रशस्ति पत्रCooley, William W., और Paul R. Lohnes. Evaluation Research in Education. Irvington Publishers : distributed by Halsted Press, 1976.
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