Posavac, E. J., & Carey, R. G. (1980). Program Evaluation. Prentice-Hall of India.
Chicago Edition CitationPosavac, Emil J., i Reymond G. Carey. Program Evaluation. New Jersey: Prentice-Hall of India, 1980.
Cita MLAPosavac, Emil J., i Reymond G. Carey. Program Evaluation. Prentice-Hall of India, 1980.
Atenció: Aquestes cites poden no estar 100% correctes.