Sax, G., & Newton, J. W. (1997). Principles of educational and psychological measurement and evaluation (4th ed.). Belmont, CA: Wadsworth.
استشهاد بنمط شيكاغوSax, Gilbert., و James W. Newton. Principles of Educational and Psychological Measurement and Evaluation. 4th ed. Belmont, CA: Wadsworth, 1997.
MLA استشهادSax, Gilbert., و James W. Newton. Principles of Educational and Psychological Measurement and Evaluation. 4th ed. Belmont, CA: Wadsworth, 1997.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.