Citazione APA

Posavac, E. J., & Carey, R. G. (1980). Program Evaluation. Prentice-Hall of India.

Stile di citazione Chicago

Posavac, Emil J., e Reymond G. Carey. Program Evaluation. New Jersey: Prentice-Hall of India, 1980.

Citazione MLA

Posavac, Emil J., e Reymond G. Carey. Program Evaluation. Prentice-Hall of India, 1980.