Dyfyniad APA

Corey, G. (2008). Theory and practice of group counseling. Australia: Thomson Brooks/Cole.

Dyfyniad Arddull Chicago

Corey, Gerald. Theory and Practice of Group Counseling. Australia: Thomson Brooks/Cole, 2008.

Dyfyniad MLA

Corey, Gerald. Theory and Practice of Group Counseling. Australia: Thomson Brooks/Cole, 2008.

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