Transportation systems planning and analysis 6 reports ; prepared for the 52nd Annual Meeting.
Awduron Corfforaethol: | , |
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Fformat: | Llyfr |
Iaith: | English |
Cyhoeddwyd: |
Washington, D.C.
National Academy of Sciences - National Research Council
1973.
|
Cyfres: | Highway research record
no. 435. |