Mehr, J. (1982). Human services concepts and intervention strategies (2ª ed.). Allyn and Bacon.
Cita Chicago (17th ed.)Mehr, Joshep. Human Services Concepts and Intervention Strategies. 2ª ed. Allyn and Bacon, 1982.
Cita MLA (9th ed.)Mehr, Joshep. Human Services Concepts and Intervention Strategies. 2ª ed. Allyn and Bacon, 1982.
Atenció: Aquestes cites poden no estar 100% correctes.