Dyfyniad APA

Wilson, G. T., & O'Leary, K. D. (1980). Principles of behavior therapy. Prentice-Hall.

Dyfyniad Arddull Chicago

Wilson, G. Terence, and K. Daniel O'Leary. Principles of Behavior Therapy. New Jersey: Prentice-Hall, 1980.

Dyfyniad MLA

Wilson, G. Terence, and K. Daniel O'Leary. Principles of Behavior Therapy. Prentice-Hall, 1980.

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