Não informado. (1961). International Journal of Machine Tools & Manufacture. Pergamon Press.
Lua i Stíl Chicago (17ú heag.)Não informado. International Journal of Machine Tools & Manufacture. Oxford, Inglaterra: Pergamon Press, 1961.
Lua MLA (8ú heag.)Não informado. International Journal of Machine Tools & Manufacture. Pergamon Press, 1961.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.