New technologies in railroad safety and security : hearing before the Subcommittee on Railroads of the Committee on Transportation and Infrastructure, House of Representatives, One Hundred Ninth Congress, first session, April 28, 2005.
Imprint
Washington : U.S. G.P.O. : For sale by the Supt. of Docs., U.S. G.P.O., 2006.
Distributed to some depository libraries in microfiche.
"109-15."
Form
Mode of access via the GPO Access web site. Address as of 7/27/06: http://frwebgate.access.gpo.gov/cgi-bin/getdoc.cgi?dbname=109%5Fhouse%5Fhearings&docid=f:21704.pdf; current access is available via PURL.