Gabor, P., & Grinnell, R. M. (1994). Evaluation and quality improvement in the human services. Allyn & Bacon.
Chicago Style (17. basım) AtıfGabor, Peter, ve Richard M. Grinnell. Evaluation and Quality Improvement in the Human Services. Boston: Allyn & Bacon, 1994.
MLA (9th ed.) AtıfGabor, Peter, ve Richard M. Grinnell. Evaluation and Quality Improvement in the Human Services. Allyn & Bacon, 1994.
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