Citazione Stile APA (7a Edizione)

Worthen, B. R., & Sanders, J. R. (1987). Educational evaluation: Alternative approaches and practical guidelines. Longman.

Citazione stile Chigago Style (17a edizione)

Worthen, Blaine R., e James R. Sanders. Educational Evaluation: Alternative Approaches and Practical Guidelines. New York: Longman, 1987.

Citatione MLA (8a ed.)

Worthen, Blaine R., e James R. Sanders. Educational Evaluation: Alternative Approaches and Practical Guidelines. Longman, 1987.