Cita APA (7th ed.)

Nichols, M. P., & Schwartz, R. P. (1991). Family therapy: Concepts and methods (2nd ed.). Allyn and Bacon.

Cita Chicago (17th ed.)

Nichols, Michael P., i Richard P. Schwartz. Family Therapy: Concepts and Methods. 2nd ed. Boston, Mass: Allyn and Bacon, 1991.

Cita MLA (9th ed.)

Nichols, Michael P., i Richard P. Schwartz. Family Therapy: Concepts and Methods. 2nd ed. Allyn and Bacon, 1991.