Não informado. (1983). World Mining Equipment. Technical Publishing Corporation.
Lua i Stíl Chicago (17ú heag.)Não informado. World Mining Equipment. New York: Technical Publishing Corporation, 1983.
Lua MLA (8ú heag.)Não informado. World Mining Equipment. Technical Publishing Corporation, 1983.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.