Dyfyniad APA

Sternberg, R. J. (1999). Cognitive psychology (2nd ed.). Harcourt Brace College Publishers.

Dyfyniad Arddull Chicago

Sternberg, Robert J. Cognitive Psychology. 2nd ed. Fort Worth: Harcourt Brace College Publishers, 1999.

Dyfyniad MLA

Sternberg, Robert J. Cognitive Psychology. 2nd ed. Harcourt Brace College Publishers, 1999.

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