Cita APA (7th ed.)
ebrary, Inc, Piercy, F. P., & Sprenkle, D. H. (2005). Research methods in family therapy (2nd ed.). Guilford Press.
Cita Chicago (17th ed.)
ebrary, Inc, Fred P. Piercy, i Douglas H. Sprenkle. Research Methods in Family Therapy. 2nd ed. New York: Guilford Press, 2005.
Cita MLA (9th ed.)
ebrary, Inc, et al. Research Methods in Family Therapy. 2nd ed. Guilford Press, 2005.
Atenció: Aquestes cites poden no estar 100% correctes.