Não informado. (2007). Engineering & Technology. Institution of Engineering and Technology.
Lua i Stíl Chicago (17ú heag.)Não informado. Engineering & Technology. Stevenage, Inglaterra: Institution of Engineering and Technology, 2007.
Lua MLA (8ú heag.)Não informado. Engineering & Technology. Institution of Engineering and Technology, 2007.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.