Rail track safety monitoring technology :
hearing before the Subcommittee on Transportation, Aviation, and Materials of the Committee on Science and Technology, House of Representatives, Ninety-eighth Congress, second session, July 27, 1984.
|Corporate Author:||United States.|
Washington : U.S. G.P.O., 1984.
Railroads / United States /
Railroads > Railroads / United States > Railroads / United States / Track > Railroads / United States / Track / Safety measures.
iii, 183 p. :
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