Popple, P. R., & Leighninger, L. (2004). The policy-based profession: An introduction to social welfare policy analysis for social workers. Boston: Pearson/Allyn and Bacon.
Παραπομπή Chicago StylePopple, Philip R., και Leslie Leighninger. The Policy-based Profession: An Introduction to Social Welfare Policy Analysis for Social Workers. Boston: Pearson/Allyn and Bacon, 2004.
Παραπομπή MLAPopple, Philip R., και Leslie Leighninger. The Policy-based Profession: An Introduction to Social Welfare Policy Analysis for Social Workers. Boston: Pearson/Allyn and Bacon, 2004.
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