Não informado. (1960). Archive for History of Exact Sciences. Springer Verlag.
Lua i Stíl Chicago (17ú heag.)Não informado. Archive for History of Exact Sciences. Berlin: Springer Verlag, 1960.
Lua MLA (8ú heag.)Não informado. Archive for History of Exact Sciences. Springer Verlag, 1960.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.