Não informado. (1962). Steel and coal. FMJ International Publications.
Lua i Stíl Chicago (17ú heag.)Não informado. Steel and Coal. London: FMJ International Publications, 1962.
Lua MLA (8ú heag.)Não informado. Steel and Coal. FMJ International Publications, 1962.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.