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1245 documents found.
Published:
| Zabel, J.B.
Published:
| Crancer, A.
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| -
Published:
| Brown, P.J.
Published:
| Park, R.A. & Rowan, N.J.
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| Great Britian Ministry of Transport
Colors of signal lights : their selection, definition, measurement, production, and use. Bookreview.
Published:
| Breckenridge, F.C.
Published:
| Freeman Jr., R.B.
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| -
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| -