The story of traffic control
By: by Ross R. Olney. Illustrated by Leonard Shortall.
Contributors: Shortall, Leonard W., illus.
Publisher: Prentice-Hall
Published: 1968
Place of publication: Englewood Cliffs, N.J
Language: eng
Number of pages: 72
Subjects: Traffic engineering -- Juvenile literature.; Traffic engineering.
Description: An explanation of how automobile, pedestrian, train, boat, and airplane traffic is controlled and regulated.