APA-viite (7. p.)
Whitaker, D. S. (2001). Using groups to help people (2nd ed.). Routledge.
Chicago-viite (17. p.)
Whitaker, Dorothy Stock. Using Groups to Help People. 2nd ed. Hove: Routledge, 2001.
MLA-viite (9. p.)
Whitaker, Dorothy Stock. Using Groups to Help People. 2nd ed. Routledge, 2001.
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