Highway practice in the United States of America : history, administration, finance, systems and standards, location and design, construction and maintenance.
Wedi'i Gadw mewn:
| Awdur Corfforaethol: | |
|---|---|
| Fformat: | Dogfen y Llywodraeth Llyfr |
| Iaith: | English |
| Cyhoeddwyd: |
Washington, :
U.S. Govt. Print. Off.,
1949.
|
| Pynciau: |
CARM 1 Store
| Rhif Galw: |
A2:AM19B0 B05808 |
|---|---|
| Copi 1 | Ar gael Gwneud Cais |