Dale, R. (2004). Evaluating development programmes and projects (Second edition.). Sage.
Dyfyniad Arddull ChicagoDale, Reidar. Evaluating Development Programmes and Projects. Second edition. Thousand Oaks, Calif.: Sage, 2004.
Dyfyniad MLADale, Reidar. Evaluating Development Programmes and Projects. Second edition. Sage, 2004.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.