Cita APA (7th ed.)

Fraenkel, J. R., & Wallen, N. E. (2019). How to design and evaluate research in education. McGraw-Hill.

Cita Chicago (17th ed.)

Fraenkel, Jack R., i Norman E. Wallen. How to Design and Evaluate Research in Education. Boston: McGraw-Hill, 2019.

Cita MLA (9th ed.)

Fraenkel, Jack R., i Norman E. Wallen. How to Design and Evaluate Research in Education. McGraw-Hill, 2019.