Não informado. (1974). Transactions of the Institution of Mining and Metallurgy. Institution of Mining and Metallurgy.
Lua i Stíl Chicago (17ú heag.)Não informado. Transactions of the Institution of Mining and Metallurgy. London: Institution of Mining and Metallurgy, 1974.
Lua MLA (8ú heag.)Não informado. Transactions of the Institution of Mining and Metallurgy. Institution of Mining and Metallurgy, 1974.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.