Lewis, S. (1972). Gideon Planish. Paul List Verlag.
Lua i Stíl Chicago (17ú heag.)Lewis, Sinclair. Gideon Planish. Leipzig: Paul List Verlag, 1972.
Lua MLA (8ú heag.)Lewis, Sinclair. Gideon Planish. Paul List Verlag, 1972.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.