Manual of safety devices :
guard rails, traffic striping, pavement markings, regulatory, warning and guide signs, traffic signals and traffic islands /
State of California, Department of Public Works, Division of Highways.
[Sacramento] : The Division, 1949.
Traffic signs and signals.
Traffic regulations > Traffic regulations / California.
"A reprint of a portion of the Maintenance Manual--1949 edition."
vii, 221-410 p. :
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