Pearson, H. (1957). Gilbert: His life and strife. Methuen.
Lua i Stíl Chicago (17ú heag.)Pearson, Hesketh. Gilbert: His Life and Strife. London: Methuen, 1957.
Lua MLA (8ú heag.)Pearson, Hesketh. Gilbert: His Life and Strife. Methuen, 1957.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.