Pietrzak, J. (1990). Practical program evaluation: Examples from child abuse prevention Sage sourcebooks for the human services series.
Chicago-Zitierstil (17. Ausg.)Pietrzak, Jeanne. "Practical Program Evaluation: Examples from Child Abuse Prevention." Sage Sourcebooks for the Human Services Series 1990.
MLA-Zitierstil (9. Ausg.)Pietrzak, Jeanne. "Practical Program Evaluation: Examples from Child Abuse Prevention." Sage Sourcebooks for the Human Services Series, 1990.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.