Cita APA (7th ed.)
Whitaker, D. S. (2001). Using groups to help people (2nd ed.). Routledge.
Cita Chicago (17th ed.)
Whitaker, Dorothy Stock. Using Groups to Help People. 2nd ed. Hove: Routledge, 2001.
Cita MLA (9th ed.)
Whitaker, Dorothy Stock. Using Groups to Help People. 2nd ed. Routledge, 2001.
Atenció: Aquestes cites poden no estar 100% correctes.