APA-referens (7:e uppl.)

Owen, J. M. (1999). Program evaluation: Forms and approaches (International ed.). Sage.

Chicago-referens (17:e uppl.)

Owen, John M. Program Evaluation: Forms and Approaches. International ed. London: Sage, 1999.

MLA-referens (9:e uppl.)

Owen, John M. Program Evaluation: Forms and Approaches. International ed. Sage, 1999.