Stephen A Kapp & Gary R Anderson. (2010). Agency based program evaluation. Sage.
Chicago Style aipamenaStephen A Kapp and Gary R Anderson. Agency Based Program Evaluation. California: Sage, 2010.
MLA aipamenaStephen A Kapp and Gary R Anderson. Agency Based Program Evaluation. Sage, 2010.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.