Dyfyniad APA

Whitaker, D. S., & Lieberman, M. A. (2008). Psychotherapeutic change through the group process (1st pbk. printing.). New Brunswick, N.J.: AldineTransaction.

Dyfyniad Arddull Chicago

Whitaker, Dorothy Stock, và Morton A. Lieberman. Psychotherapeutic Change Through the Group Process. 1st pbk. printing. New Brunswick, N.J.: AldineTransaction, 2008.

Dyfyniad MLA

Whitaker, Dorothy Stock, và Morton A. Lieberman. Psychotherapeutic Change Through the Group Process. 1st pbk. printing. New Brunswick, N.J.: AldineTransaction, 2008.

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