Noreland, J. (2008). Modal split in the inland transport of the EU: Freight and passenger transport up to 2006. Statistics in focus: Transport.
Lua i Stíl Chicago (17ú heag.)Noreland, Jonas. "Modal Split in the Inland Transport of the EU: Freight and Passenger Transport Up to 2006." Statistics in Focus: Transport 2008.
Lua MLA (8ú heag.)Noreland, Jonas. "Modal Split in the Inland Transport of the EU: Freight and Passenger Transport Up to 2006." Statistics in Focus: Transport, 2008.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.