Spielberg, F., & Pratt, R. H. (2004). Traveler response to transportation system changes. Transportation Research Board.
Chicago Style aipamenaSpielberg, Franklin, and Richard H. Pratt. Traveler Response to Transportation System Changes. Washington, D.C: Transportation Research Board, 2004.
MLA aipamenaSpielberg, Franklin, and Richard H. Pratt. Traveler Response to Transportation System Changes. Transportation Research Board, 2004.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.