Highway sufficiency ratings presented at the 31st annual meeting, January 1952.

Highway sufficiency ratings presented at the 31st annual meeting, January 1952.

التفاصيل البيبلوغرافية
مؤلف مشترك: National Research Council (U.S.). Highway Research Board
التنسيق: كتاب
اللغة:English
منشور في: Washington, D.C. The Board 1952.
سلاسل:Highway Research Board Bulletin53.
National Research Council. Publication 228.
الموضوعات:
Traffic surveys > United States.
Roads > United States.