Não informado. (1974). International journal of powder metallurgy and powder technology. American Powder Metallurgy Institute.
Lua i Stíl Chicago (17ú heag.)Não informado. International Journal of Powder Metallurgy and Powder Technology. Princeton, NJ: American Powder Metallurgy Institute, 1974.
Lua MLA (8ú heag.)Não informado. International Journal of Powder Metallurgy and Powder Technology. American Powder Metallurgy Institute, 1974.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.