Continuing project to synthesize information on highway problems.
| निगमित लेखक: | |
|---|---|
| स्वरूप: | पुस्तक |
| भाषा: | अंग्रेज़ी |
| प्रकाशित: |
Washington, D.C.
Transportation Research Board, National Research Council
[1987]
|
| श्रृंखला: | Research results digest (National Cooperative Highway Research Program)
no. 166 |
| विषय: |