Highway economics 7 reports ; presented at the 42nd Annual Meeting, January 7-11, 1963.

Bibliografiset tiedot
Yhteisötekijät:	National Research Council (U.S.). Highway Research Board, National Research Council (U.S.). Highway Research Board. Committee on Highway Costs, National Research Council (U.S.). Highway Research Board. Committee on Highway Engineering Economy
Aineistotyyppi:	Kirja
Kieli:	englanti
Julkaistu:	Washington, D.C. Highway Research Board of the Division of Engineering and Industrial Research, National Academy of Sciences-National Research Council 1963.
Sarja:	Highway research record no. 12. Publication (National Research Council (U.S.)) 1109.
Aiheet:	Roads > United States > Costs. Roads > Economic aspects > United States.