Sax, G. (1974). Principles of educational measurement and evaluation. Wadsworth Pub. Co.
Citazione stile Chigago Style (17a edizione)Sax, Gilbert. Principles of Educational Measurement and Evaluation. Belmont, Calif.: Wadsworth Pub. Co, 1974.
Citatione MLA (8a ed.)Sax, Gilbert. Principles of Educational Measurement and Evaluation. Wadsworth Pub. Co, 1974.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.