National Research Council (Estados Unidos). Transportation Research Board, & National Research Council (Estados Unidos). Transportation Research Board. (1980). Urban systems and traffic evaluations. Washington: National Academy of Sciences.
Chicago Style CitationNational Research Council (Estados Unidos). Transportation Research Board, and National Research Council (Estados Unidos). Transportation Research Board. Urban Systems and Traffic Evaluations. Washington: National Academy of Sciences, 1980.
MLA CitationNational Research Council (Estados Unidos). Transportation Research Board, and National Research Council (Estados Unidos). Transportation Research Board. Urban Systems and Traffic Evaluations. Washington: National Academy of Sciences, 1980.