Frayn, M. (1984). Benefactors: A play in two acts. Methuen.
Lua i Stíl Chicago (17ú heag.)Frayn, Michael. Benefactors: A Play in Two Acts. London: Methuen, 1984.
Lua MLA (9ú heag.)Frayn, Michael. Benefactors: A Play in Two Acts. Methuen, 1984.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.