National Cooperative Highway Research Program & National Research Council (U.S.). Transportation Research Board. (1986). Continuing project to synthesize information on highway problems. Transportation Research Board.
Chicago-Zitierstil (17. Ausg.)National Cooperative Highway Research Program und National Research Council (U.S.). Transportation Research Board. Continuing Project to Synthesize Information on Highway Problems. Washington, D.C: Transportation Research Board, 1986.
MLA-Zitierstil (9. Ausg.)National Cooperative Highway Research Program und National Research Council (U.S.). Transportation Research Board. Continuing Project to Synthesize Information on Highway Problems. Transportation Research Board, 1986.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.