Guerra-López, I. (2007). Evaluating impact: Evaluation and continual improvement for performance improvement practitioners. HDR Press.
Chicago-Zitierstil (17. Ausg.)Guerra-López, Ingrid. Evaluating Impact: Evaluation and Continual Improvement for Performance Improvement Practitioners. Amherst, Mass: HDR Press, 2007.
MLA-Zitierstil (9. Ausg.)Guerra-López, Ingrid. Evaluating Impact: Evaluation and Continual Improvement for Performance Improvement Practitioners. HDR Press, 2007.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.