Cone, J. D. (2002). Evaluating outcomes: Empirical tools for effective practice (First edition.). American Psychological Association.
Chicago-viite (17. p.)Cone, John D. Evaluating Outcomes: Empirical Tools for Effective Practice. First edition. Washington: American Psychological Association, 2002.
MLA-viite (8. p.)Cone, John D. Evaluating Outcomes: Empirical Tools for Effective Practice. First edition. American Psychological Association, 2002.
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