Icon. International Committee for the History of Technology (ICOHTEC).
Lua i Stíl Chicago (17ú heag.)Icon. International Committee for the History of Technology (ICOHTEC).
Lua MLA (9ú heag.)Icon. International Committee for the History of Technology (ICOHTEC).
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.