Conference on Long-Range Trends and Requirements for the Nation's Highway and Public Transit Systems Washington, D.C., National Research Council (U.S.). Transportation Research Board, & United States. Federal Highway Administration. (1988). A look ahead, year 2020: Proceedings of the Conference on Long-Range Trends and Requirements for the Nation's Highway and Public Transit Systems. Transportation Research Board, National Research Council.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিConference on Long-Range Trends and Requirements for the Nation's Highway and Public Transit Systems Washington, D.C., National Research Council (U.S.). Transportation Research Board, এবং United States. Federal Highway Administration. A Look Ahead, Year 2020: Proceedings of the Conference on Long-Range Trends and Requirements for the Nation's Highway and Public Transit Systems. Washington, D.C: Transportation Research Board, National Research Council, 1988.
M.L.A (9 ম সংস্করণ) উদ্ধৃতিConference on Long-Range Trends and Requirements for the Nation's Highway and Public Transit Systems Washington, D.C., et al. A Look Ahead, Year 2020: Proceedings of the Conference on Long-Range Trends and Requirements for the Nation's Highway and Public Transit Systems. Transportation Research Board, National Research Council, 1988.