Traffic research problem statements presented at the 31st annual meeting, January 14-18, 1952.

Traffic research problem statements presented at the 31st annual meeting, January 14-18, 1952.

গ্রন্থ-পঞ্জীর বিবরন
সংস্থা লেখক: National Research Council (U.S.). Highway Research Board
বিন্যাস: গ্রন্থ
ভাষা:English
প্রকাশিত: Washington, D.C. Highway Research Board 1952.
বিষয়গুলি:
Traffic regulations > Congresses.