APA-viite (7. p.)
Nichols, M. P. (2014). The essentials of family therapy (6th ed.). Pearson.
Chicago-viite (17. p.)
Nichols, Michael P. The Essentials of Family Therapy. 6th ed. Boston: Pearson, 2014.
MLA-viite (9. p.)
Nichols, Michael P. The Essentials of Family Therapy. 6th ed. Pearson, 2014.
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