397897 Nichols, M. P., & Schwartz, R. C. (2001). The essentials of family therapy. Boston, Mass. : Allyn and Bacon.
Chicago-viite (17. p.)397897 Nichols, Michael P., ja Richard C. Schwartz. The Essentials of Family Therapy. Boston, Mass. : Allyn and Bacon, 2001.
MLA-viite (9. p.)397897 Nichols, Michael P., ja Richard C. Schwartz. The Essentials of Family Therapy. Boston, Mass. : Allyn and Bacon, 2001.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.