Policy on maintenance of safety and traffic control devices and related traffic services /
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| Corporate Author: | |
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| Format: | Book |
| Language: | English |
| Published: |
Washington, D.C. :
Amer. Assoc. of State Highway Officials,
c1955.
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| Subjects: |
| Physical Description: | 147 p. : ill. ; 22 cm. |
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