Certain structural components of letters for improving the efficiency of the stop sign.

Author(s)
A.R. Lauer.

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Publication

Library number
2536.
Source

Reprinted from: Proceedings of the 21th annual meeting of the Highway research board, dec. 1947.

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This publication is one of our other publications, and part of our extensive collection of road safety literature, that also includes the SWOV publications.