Dyfyniad APA
Aiken, L. R. (1985). Psychological testing and assessment (7th ed.). Allyn.
Dyfyniad Arddull Chicago
Aiken, Lewis R. Psychological Testing and Assessment. 7th ed. Boston: Allyn, 1985.
Dyfyniad MLA
Aiken, Lewis R. Psychological Testing and Assessment. 7th ed. Allyn, 1985.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.