APA (7th ed.) Zitazioa

Posavac, E. J., & Carey , R. G. (1992). Program evaluation: Methods and case studies. Prentice Hall.

Chicago Style (17th ed.) Zitazioa

Posavac, Emil J., eta Raymond G. Carey. Program Evaluation: Methods and Case Studies. Englewood Cliffs, N.J.: Prentice Hall, 1992.

MLA (9th ed.) Zitazioa

Posavac, Emil J., eta Raymond G. Carey. Program Evaluation: Methods and Case Studies. Prentice Hall, 1992.