Thorndike, R. L., & Hagen, E. P. (1961). Measurement and evaluation in psychology and education (Second edition.). Wiley.
Lua i Stíl Chicago (17ú heag.)Thorndike, Robert L., agus Elizabeth P. Hagen. Measurement and Evaluation in Psychology and Education. Second edition. New York: Wiley, 1961.
Lua MLA (8ú heag.)Thorndike, Robert L., agus Elizabeth P. Hagen. Measurement and Evaluation in Psychology and Education. Second edition. Wiley, 1961.
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