United States. Congress. House. Committee on Transportation and Infrastructure. Subcommittee on Railroads, P. (2009). Freight and passenger rail: Present and future roles, performance, benefits, and needs : hearing before the Subcommittee on Railroads, Pipelines, and Hazardous Materials of the Committee on Transportation and Infrastructure, House of Representatives, One Hundred Eleventh Congress, first session, January 28, 2009. Washington: U.S. G.P.O..

United States. Congress. House. Committee on Transportation and Infrastructure. Subcommittee on Railroads, Pipelines. Freight and Passenger Rail: Present and Future Roles, Performance, Benefits, and Needs : Hearing Before the Subcommittee On Railroads, Pipelines, and Hazardous Materials of the Committee On Transportation and Infrastructure, House of Representatives, One Hundred Eleventh Congress, First Session, January 28, 2009. Washington: U.S. G.P.O., 2009.

United States. Congress. House. Committee on Transportation and Infrastructure. Subcommittee on Railroads, Pipelines. Freight and Passenger Rail: Present and Future Roles, Performance, Benefits, and Needs : Hearing Before the Subcommittee On Railroads, Pipelines, and Hazardous Materials of the Committee On Transportation and Infrastructure, House of Representatives, One Hundred Eleventh Congress, First Session, January 28, 2009. Washington: U.S. G.P.O., 2009.