Não informado. (1967). Metal Science Journal. Institute of Metals.
Lua i Stíl Chicago (17ú heag.)Não informado. Metal Science Journal. London: Institute of Metals, 1967.
Lua MLA (8ú heag.)Não informado. Metal Science Journal. Institute of Metals, 1967.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.