Some economic effects of highway improvement presented at the Thirty-second Annual Meeting, January 13-16, 1953.

Manylion Llyfryddiaeth
Awdur Corfforaethol: National Research Council (U.S.). Highway Research Board
Fformat: Llyfr
Iaith:English
Cyhoeddwyd: Washington Highway Research Board 1953.
Cyfres:Highway Research Board Bulletin 67.
Pynciau: