Pavement-marking materials presented at the 31st annual meeting, January, 1952.
| Erakunde egilea: | |
|---|---|
| Formatua: | Liburua |
| Hizkuntza: | English |
| Argitaratua: |
Washington
The Board
1952.
|
| Saila: | Highway Research Board
Bulletin 57. National Research Council. Publication 239. |
| Gaiak: |