APA (7 ম সংস্করণ) উদ্ধৃতি

Guerra-López, I. (2007). Evaluating impact: Evaluation and continual improvement for performance improvement practitioners. HDR Press.

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

Guerra-López, Ingrid. Evaluating Impact: Evaluation and Continual Improvement for Performance Improvement Practitioners. Amherst, Mass.: HDR Press, 2007.

M.L.A (9 ম সংস্করণ) উদ্ধৃতি

Guerra-López, Ingrid. Evaluating Impact: Evaluation and Continual Improvement for Performance Improvement Practitioners. HDR Press, 2007.