Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (9a ed.)

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