Statistics in focus: Transport: Eurostat. Eurostat.
Lua i Stíl Chicago (17ú heag.)Statistics in Focus: Transport: Eurostat. Luxembourg: Eurostat.
Lua MLA (8ú heag.)Statistics in Focus: Transport: Eurostat. Eurostat.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.