National Research Council (U.S.). Transportation Research Board, United States. Federal Highway Administration, & American Association of State Highway and Transportation Officials. (1976). Transportation requirements for the handicapped, elderly, and economically disadvantaged. Transportation Research Board, National Research Council.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)National Research Council (U.S.). Transportation Research Board, United States. Federal Highway Administration, و American Association of State Highway and Transportation Officials. Transportation Requirements for the Handicapped, Elderly, and Economically Disadvantaged. Washington: Transportation Research Board, National Research Council, 1976.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)National Research Council (U.S.). Transportation Research Board, et al. Transportation Requirements for the Handicapped, Elderly, and Economically Disadvantaged. Transportation Research Board, National Research Council, 1976.