Cita APA (7th ed.)

Mills, G. E., & Gay, L. R. (2019). Educational research: Competencies for analysis and applications (Twelfth edition.). Pearson.

Cita Chicago (17th ed.)

Mills, Geoffrey E., i L. R. Gay. Educational Research: Competencies for Analysis and Applications. Twelfth edition. NY, NY: Pearson, 2019.

Cita MLA (8th ed.)

Mills, Geoffrey E., i L. R. Gay. Educational Research: Competencies for Analysis and Applications. Twelfth edition. Pearson, 2019.