Carey, R. G., & Posavac, E. J. (1989). Program evaluation: Methods and case studies (3.).
Chicago Edition CitationCarey, Raymond G., and Emel J. Posavac. Program Evaluation: Methods and Case Studies. 3. New Jersey, Prentice Hall, 1989.
MLA Edition CitationCarey, Raymond G., and Emel J. Posavac. Program Evaluation: Methods and Case Studies. 3. 1989.
Warning: These citations may not always be 100% accurate.