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1636 documents found.
Published:
| Park, R.A. & Rowan, N.J.
Published:
| 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.
Published:
| -
Published:
| -
Published:
| Reilly, W.R. & Woods, D.L.
Published:
| Wilson, W. Miller, H.L. Lower, J.S.
Published:
| Marble, D.F. Berry, B.J.L.
Published:
| Smith, M.C.