Não informado. (1980). Evaluation Review. Sage Publications.
Lua i Stíl Chicago (17ú heag.)Não informado. Evaluation Review. Beverly Hills, Calif: Sage Publications, 1980.
Lua MLA (8ú heag.)Não informado. Evaluation Review. Sage Publications, 1980.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.