Highway signing research : Phase II. Characterization of sign-facing materials /
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| Other Authors: | |
| Format: | Book |
| Language: | English |
| Published: |
San Antonio, Tex. :
Southwest Research Institute,
[1966]
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| Subjects: |
| Item Description: | "PB-173-552"--Written on title page. |
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| Physical Description: | x, 107 leaves : illustrations ; 28 cm. |
| Bibliography: | Bibliography : leaves 94-107. |