Mehr, J. (1982). Human services concepts and intervention strategies (2ª ed.). Allyn and Bacon.
Tohutoru Kātū ChicagoMehr, Joshep. Human Services Concepts and Intervention Strategies. 2ª ed. Allyn and Bacon, 1982.
Tohutoro MLAMehr, Joshep. Human Services Concepts and Intervention Strategies. 2ª ed. Allyn and Bacon, 1982.
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