Roess, R. P. (2004). Traffic engineering. New Jersey: Pearson Prentice Hall.
Chicago Style aipamenaRoess, Roger P. Traffic Engineering. New Jersey: Pearson Prentice Hall, 2004.
MLA aipamenaRoess, Roger P. Traffic Engineering. New Jersey: Pearson Prentice Hall, 2004.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.