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.
Chicago-tyylinen lähdeviittausPopple, Philip R., ja Leslie Leighninger. The Policy-based Profession: An Introduction to Social Welfare Policy Analysis for Social Workers. Boston: Pearson/Allyn and Bacon, 2004.
MLA-viitePopple, Philip R., ja 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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