Royse, D. D. (1995). Research methods in social work (2nd ed.). Nelson-Hall.
Chicago-viite (17. p.)Royse, David D. Research Methods in Social Work. 2nd ed. Chicago: Nelson-Hall, 1995.
MLA-viite (9. p.)Royse, David D. Research Methods in Social Work. 2nd ed. Nelson-Hall, 1995.
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