Proceedings
Subtitle: International Conference on Highway Sign Symbology, Washington, D.C., June 5-6, 1972
Publisher: U.S. Govt. Print, Off.
Published: 1972
Place of publication: Washington
Language: eng
Number of pages: 157
Subjects: Traffic signs and signals; Congresses
Notes: Sponsored by the International Road Federation and the U.S. Dept. of Transportation, Federal Highway Administration.

Includes bibliographical references.