Zimmerman, M. A., & Holden, D. J. (2009). A practical guide to program evaluation planning: Theory and case examples. SAGE Productions.
Citazione stile Chigago Style (17a edizione)Zimmerman, Marc A., e Debra J. Holden. A Practical Guide to Program Evaluation Planning: Theory and Case Examples. Thousand Oaks, Calif: SAGE Productions, 2009.
Citatione MLA (9a ed.)Zimmerman, Marc A., e Debra J. Holden. A Practical Guide to Program Evaluation Planning: Theory and Case Examples. SAGE Productions, 2009.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.