Posavac, E. J., & Carey, R. G. (2003). Program evaluation: Methods and case studies (6th ed.). Prentice Hall.
Citación estilo ChicagoPosavac, Emil J., and Raymond G. Carey. Program Evaluation: Methods and Case Studies. 6th ed. Upper Saddle River, N.J: Prentice Hall, 2003.
Cita MLAPosavac, Emil J., and Raymond G. Carey. Program Evaluation: Methods and Case Studies. 6th ed. Prentice Hall, 2003.
Warning: These citations may not always be 100% accurate.