APA (7th ed.) Zitazioa
Nichols, M. P. (2014). The essentials of family therapy (6th ed.). Pearson.
Chicago Style (17th ed.) Zitazioa
Nichols, Michael P. The Essentials of Family Therapy. 6th ed. Boston: Pearson, 2014.
MLA (9th ed.) Zitazioa
Nichols, Michael P. The Essentials of Family Therapy. 6th ed. Pearson, 2014.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.