The selection of geometric design standards for rural roads in developing countries
| Prif Awdur: | |
|---|---|
| Awdur Corfforaethol: | |
| Fformat: | Llyfr |
| Iaith: | English |
| Cyhoeddwyd: |
Crowthorne, Berkshire
Transport and Road Research Laboratory
1981.
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| Pynciau: |