Cita APA (7th ed.)
Sax, G. (1980). Principles of educational and psychological measurement and evaluation (2nd ed.). Wadsworth Pub. Co..
Cita Chicago (17th ed.)
Sax, Gilbert. Principles of Educational and Psychological Measurement and Evaluation. 2nd ed. Belmont, Calif.: Wadsworth Pub. Co., 1980.
Cita MLA (9th ed.)
Sax, Gilbert. Principles of Educational and Psychological Measurement and Evaluation. 2nd ed. Wadsworth Pub. Co., 1980.
Atenció: Aquestes cites poden no estar 100% correctes.