Mehr, J. (1982). Human services concepts and intervention strategies (2ª ed.). Allyn and Bacon.
Chicago-viite (17. p.)Mehr, Joshep. Human Services Concepts and Intervention Strategies. 2ª ed. Allyn and Bacon, 1982.
MLA-viite (9. p.)Mehr, Joshep. Human Services Concepts and Intervention Strategies. 2ª ed. Allyn and Bacon, 1982.
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