Improvement of transportation graphics and communications
Subtitle: proceedings of a seminar, April 11-12, 1968. Held by the Federal Highway Administration Task Force on Highway Transportation Graphics and Communications.
Publisher: [U.S. Bureau of Public Roads
Published: 1969
Place of publication: Washington
Language: eng
Number of pages: 109
Subjects: Traffic signs and signals -- Congresses.; Traffic safety -- Congresses.
Notes: Cover title.