National survey of transportation attitudes and behavior phase I ; summary report - McMillan, Robert K.; Assael, Henry; American Association of State Highway Officials; National Research Council (U.S.). Highway Research Board ([Washington] Highway Research Board, National Research Council, 1968)
"NCHRP project 20-4 FY '65 and FY '66."
"Research sponsored by the American Association of State Highway Officials in cooperation with the Bureau of Public Roads."
Keywords: Transportation -- United States