APA (7th ed.) Zitazioa
(2001). Urban transportation planning. McGraw-Hill.
Chicago Style (17th ed.) Zitazioa
Urban Transportation Planning. McGraw-Hill, 2001.
MLA (9th ed.) Zitazioa
Urban Transportation Planning. McGraw-Hill, 2001.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.