Dyfyniad APA

Bernstein, D. A. (1999). Essentials of psychology (Annotated instructor's edition.). Houghton Mifflin.

Dyfyniad Arddull Chicago

Bernstein, Douglas A. Essentials of Psychology. Annotated instructor's edition. Boston: Houghton Mifflin, 1999.

Dyfyniad MLA

Bernstein, Douglas A. Essentials of Psychology. Annotated instructor's edition. Houghton Mifflin, 1999.

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