Citazione Stile APA (7a Edizione)

Frey, B. B. (2022). The SAGE encyclopedia of research design (Second edition.). SAGE Reference.

Citazione stile Chigago Style (17a edizione)

Frey, Bruce B. The SAGE Encyclopedia of Research Design. Second edition. Los Angeles, California: SAGE Reference, 2022.

Citatione MLA (9a ed.)

Frey, Bruce B. The SAGE Encyclopedia of Research Design. Second edition. SAGE Reference, 2022.