Herrin, A. N. (1987). Evaluating development projects: Principles & applications. Population/Development Planning and Research Project, National Economic and Development Authority.
Παραπομπή σε μορφή Chicago (17η εκδ.)Herrin, Alejandro N. Evaluating Development Projects: Principles & Applications. Metro Manila: Population/Development Planning and Research Project, National Economic and Development Authority, 1987.
Παραπομπή σε μορφή MLA (9th εκδ.)Herrin, Alejandro N. Evaluating Development Projects: Principles & Applications. Population/Development Planning and Research Project, National Economic and Development Authority, 1987.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.