APA-čujuhus (7. p.)
Sax, G. (1980). Principles of educational and psychological measurement and evaluation (2nd ed.). Wadsworth Pub. Co..
Chicago-čujuhus (17. p.)
Sax, Gilbert. Principles of Educational and Psychological Measurement and Evaluation. 2nd ed. Belmont, Calif.: Wadsworth Pub. Co., 1980.
MLA-čujuhus (9. p.)
Sax, Gilbert. Principles of Educational and Psychological Measurement and Evaluation. 2nd ed. Wadsworth Pub. Co., 1980.
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