Catalog Record: Perceptual factors and meanings of symbolic information elements | HathiTrust Digital Library

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Perceptual factors and meanings of symbolic information elements /
Federal Highway Administration, Offices of Research & Development.

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Related Names: Welch, Daniel. , Lareau, Ernest W. , Roberts, King M.
Language(s): English
Published: Washington : The Offices, 1977.
Subjects: Traffic signs.
Note: Distributed by NTIS.
Prepared by King M. Roberts, Ernest W. Lareau, Jr. and Daniel Welch.
Cover title.
Final report.
Physical Description: 2 v. : ill. ; 28 cm.
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