Lua APA (7ú heag.)

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

Lua i Stíl Chicago (17ú heag.)

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

Lua MLA (9ú heag.)

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

Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.