Dyfyniad APA

James, W. (1918). Principles of psychology (2nd ed.). Dover.

Dyfyniad Arddull Chicago

James, William. Principles of Psychology. 2nd ed. New York: Dover, 1918.

Dyfyniad MLA

James, William. Principles of Psychology. 2nd ed. Dover, 1918.

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