Mullan, H., & Rosenbaum, M. 1. (1962). Group psychotherapy: Theory and practice. Macmillan.
Dyfyniad Arddull ChicagoMullan, Hugh, and Max 1923 Rosenbaum. Group Psychotherapy: Theory and Practice. New York: Macmillan, 1962.
Dyfyniad MLAMullan, Hugh, and Max 1923 Rosenbaum. Group Psychotherapy: Theory and Practice. Macmillan, 1962.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.