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

Manylion Llyfryddiaeth
Awduron Corfforaethol:	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
Fformat:	Llyfr
Iaith:	Saesneg
Cyhoeddwyd:	Washington, D.C. Highway Research Board of the Division of Engineering and Industrial Research, National Academy of Sciences-National Research Council 1963.
Cyfres:	Highway research record no. 12. Publication (National Research Council (U.S.)) 1109.
Pynciau:	Roads > United States > Costs. Roads > Economic aspects > United States.