Dyfyniad APA

Aiken, L. R., & Marnat, G. G. (2008). Psychological testing and assessment/12e. Pearson education.

Dyfyniad Arddull Chicago

Aiken, Lewis R., and Gary Groth Marnat. Psychological Testing and Assessment/12e. New Delhi: Pearson education, 2008.

Dyfyniad MLA

Aiken, Lewis R., and Gary Groth Marnat. Psychological Testing and Assessment/12e. Pearson education, 2008.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.