Some psychophysical tests of the conspicuities of emergency vehicle warning lights /
| Main Author: | |
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| Corporate Authors: | , , |
| Format: | Government Document Book |
| Language: | English |
| Published: |
Washington :
Dept. of Commerce, National Bureau of Standards : for sale by the Supt.of Docs., U.S. Govt. Print. Off.,
1979
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| Series: | Law enforcement equipment technology
NBS special publication ; 480-36 |
| Subjects: |