Dyfyniad APA

397897 Nichols, M. P., & Schwartz, R. C. (2001). The essentials of family therapy. Boston, Mass. : Allyn and Bacon.

Dyfyniad Arddull Chicago

397897 Nichols, Michael P., and Richard C. Schwartz. The Essentials of Family Therapy. Boston, Mass. : Allyn and Bacon, 2001.

Dyfyniad MLA

397897 Nichols, Michael P., and Richard C. Schwartz. The Essentials of Family Therapy. Boston, Mass. : Allyn and Bacon, 2001.

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