Hopkins, K. D., Stanley, J. C., & Hopkins, B. (1990). Educational and psychological measurement and evaluation (6th ed.). Allyn and Bacon.
Cita Chicago Style (17a ed.)Hopkins, Kenneth D., Julian C. Stanley, y B.R Hopkins. Educational and Psychological Measurement and Evaluation. 6th ed. London: Allyn and Bacon, 1990.
Cita MLA (9a ed.)Hopkins, Kenneth D., et al. Educational and Psychological Measurement and Evaluation. 6th ed. Allyn and Bacon, 1990.
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