Dyfyniad APA

Spiegler, M. D. G. C. (1998). Contemporary behaviour therapy (3.). Pacific grove Brooks/cole publishing company.

Dyfyniad Arddull Chicago

Spiegler, Michael D Guevremont,David C. Contemporary Behaviour Therapy. 3. Pacific grove Brooks/cole publishing company, 1998.

Dyfyniad MLA

Spiegler, Michael D Guevremont,David C. Contemporary Behaviour Therapy. 3. Pacific grove Brooks/cole publishing company, 1998.

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