National Research Council (U.S.). Highway Research Board. (1973). Transit planning and development: 7 reports prepared for the 52nd annual meeting. National Academy of Science - National Research Council.
Trích dẫn kiểu Chicago (xuất bản lần thứ 7)National Research Council (U.S.). Highway Research Board. Transit Planning and Development: 7 Reports Prepared for the 52nd Annual Meeting. Washington, D.C: National Academy of Science - National Research Council, 1973.
Trích dẫn kiểu MLA (xuất bản lần thứ 9)National Research Council (U.S.). Highway Research Board. Transit Planning and Development: 7 Reports Prepared for the 52nd Annual Meeting. National Academy of Science - National Research Council, 1973.
Cảnh báo: Các trích dẫn này có thể không phải lúc nào cũng chính xác 100%.