Cita APA (7th ed.)

Posavac, E. J. (1992). Program evaluation: Methods and case studies (4th ed.). Prentice-Hall.

Cita Chicago (17th ed.)

Posavac, Emil J. Program Evaluation: Methods and Case Studies. 4th ed. Englewood Cliffs, N.J: Prentice-Hall, 1992.

Cita MLA (9th ed.)

Posavac, Emil J. Program Evaluation: Methods and Case Studies. 4th ed. Prentice-Hall, 1992.