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

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

Bibliografiset tiedot
Yhteisötekijä: National Research Council (U.S.). Highway Research Board
Aineistotyyppi: Kirja
Kieli:English
Julkaistu: Washington, D.C. The Board 1952.
Sarja:Highway Research Board Bulletin53.
National Research Council. Publication 228.
Aiheet:
Traffic surveys > United States.
Roads > United States.