APA (7th ed.) Zitazioa
European Conference of Ministers of Transport. (2003). Reforming transport taxes. ECMT.
Chicago Style (17th ed.) Zitazioa
European Conference of Ministers of Transport. Reforming Transport Taxes. Paris Cedex, France: ECMT, 2003.
MLA (9th ed.) Zitazioa
European Conference of Ministers of Transport. Reforming Transport Taxes. ECMT, 2003.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.