Não informado. (1949). Journal of Metals. Metallurgical Society of AIME.
Lua i Stíl Chicago (17ú heag.)Não informado. Journal of Metals. New York: Metallurgical Society of AIME, 1949.
Lua MLA (8ú heag.)Não informado. Journal of Metals. Metallurgical Society of AIME, 1949.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.