Não informado. (1987). International Materials Reviews. Institute of Metals.
Lua i Stíl Chicago (17ú heag.)Não informado. International Materials Reviews. London: Institute of Metals, 1987.
Lua MLA (8ú heag.)Não informado. International Materials Reviews. Institute of Metals, 1987.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.