Citazione Stile APA (7a Edizione)

Fraenkel, J. R., & Wallen, N. E. (2009). How to design and evaluate research in education (7th ed.). McGraw-Hill.

Citazione stile Chigago Style (17a edizione)

Fraenkel, Jack R., e Norman E. Wallen. How to Design and Evaluate Research in Education. 7th ed. New York, NY: McGraw-Hill, 2009.

Citatione MLA (8a ed.)

Fraenkel, Jack R., e Norman E. Wallen. How to Design and Evaluate Research in Education. 7th ed. McGraw-Hill, 2009.