University of BathLondon School of Economics and Political Science. (1967). Journal of Transport Economics and Policy. University of Bath.
Lua i Stíl Chicago (17ú heag.)University of BathLondon School of Economics and Political Science. Journal of Transport Economics and Policy. Bath, Inglaterra: University of Bath, 1967.
Lua MLA (8ú heag.)University of BathLondon School of Economics and Political Science. Journal of Transport Economics and Policy. University of Bath, 1967.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.