Nichols, . P. M., & Schwartz, . C. R. (2004). Family Therapy: Concepts and Methods (6th ed.). Pearson.
Chicago Style (17th ed.) ZitazioaNichols, P. Michael, eta C. Richard Schwartz. Family Therapy: Concepts and Methods. 6th ed. Boston: Pearson, 2004.
MLA (9th ed.) ZitazioaNichols, P. Michael, eta C. Richard Schwartz. Family Therapy: Concepts and Methods. 6th ed. Pearson, 2004.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.