A user's guide to positive guidance
By: Theodore J. Post ... [et al.]
Contributors: Post, Theodore J.; United States. Federal Highway Administration. Office of Traffic Operations.; Biotechnology, inc.
Publisher: Dept. of Transportation, Federal Highway Administration, Office of Traffic Operations
Published: 1977
Place of publication: [Washington]
Language: eng
Number of pages: 163
Subjects: Automobile drivers -- United States.; Traffic signs and signals.
Notes: Prepared by BioTechnology, Inc. and Federal Highway Administration under contract no., DOT-FH-11-8864.

Issued Jan. 1977.