Grinnell, R. M. (1997). Social work research and evaluation: Quantitative and qualitative approaches (5th ed.). F. E. Peacock Publisher.
Citace podle Chicago (17th ed.)Grinnell, Richard M. Social Work Research and Evaluation: Quantitative and Qualitative Approaches. 5th ed. Itasca, Illinois: F. E. Peacock Publisher, 1997.
Citace podle MLA (9th ed.)Grinnell, Richard M. Social Work Research and Evaluation: Quantitative and Qualitative Approaches. 5th ed. F. E. Peacock Publisher, 1997.
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