Colors of light signals : official recommendations /
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| Corporate Author: | |
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| Format: | Book |
| Language: | English |
| Published: |
Paris :
Bureau Central de la CIE,
1975.
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| Series: | Publication CIE ;
no. 2.2 (TC-1.6) |
| Subjects: |
| Item Description: | English, French and German. |
|---|---|
| Physical Description: | i, 85 p. : ill. ; 30 cm. |