(2006). Journal Transportation Engineering Mei 2006. ASCE.
Lua i Stíl Chicago (17ú heag.)Journal Transportation Engineering Mei 2006. ASCE, 2006.
Lua MLA (8ú heag.)Journal Transportation Engineering Mei 2006. ASCE, 2006.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.