Não informado. (2020). Special Report. Iron and Steel Institute.
Lua i Stíl Chicago (17ú heag.)Não informado. Special Report. London: Iron and Steel Institute, 2020.
Lua MLA (8ú heag.)Não informado. Special Report. Iron and Steel Institute, 2020.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.