A statistical analysis of carriers' monthly hours of service reports covering all railroads which reported during the year ... /
instances in which employees were on duty for periods other than those provided by the Federal hours of service act, together with a comparative summary ...
|Corporate Author:||United States.|
Railroads / United States /
Railroads / United States / Employees /
Hours of service.
28 x 43 cm.
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|Full view1940/1941-1948/1949,1950/1951-1951/1952||University of Michigan|