Cohen, R. J., & Swerdlik, M. E. (2013). Psychological testing and assessment: An introduction to tests and measurement (8th ed.). McGraw-Hill.
Chicago Style aipamenaCohen, Ronald Jay, and Mark E. Swerdlik. Psychological Testing and Assessment: An Introduction to Tests and Measurement. 8th ed. Mountain View, Calif: McGraw-Hill, 2013.
MLA aipamenaCohen, Ronald Jay, and Mark E. Swerdlik. Psychological Testing and Assessment: An Introduction to Tests and Measurement. 8th ed. McGraw-Hill, 2013.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.