Citazione Stile APA (7a Edizione)

.Posavac, E. J., & .Carey, R. G. (1985). Program evaluation: Methods and case studies (2nd ed.). Prentice-Hall.

Citazione stile Chigago Style (17a edizione)

.Posavac, Emil J., e Raymond G. .Carey. Program Evaluation: Methods and Case Studies. 2nd ed. .Englewood Cliffs, N.J: Prentice-Hall, 1985.

Citatione MLA (9a ed.)

.Posavac, Emil J., e Raymond G. .Carey. Program Evaluation: Methods and Case Studies. 2nd ed. Prentice-Hall, 1985.