United States. Congress. House. Committee on Oversight and Government Reform. (2011). The Washington Metro system: Safety, service, and stability : hearing before the Committee on Oversight and Government Reform, House of Representatives, One Hundred Eleventh Congress, second session, April 21, 2010. U.S. G.P.O..
Chicago Style (17th ed.) CitationUnited States. Congress. House. Committee on Oversight and Government Reform. The Washington Metro System: Safety, Service, and Stability : Hearing Before the Committee on Oversight and Government Reform, House of Representatives, One Hundred Eleventh Congress, Second Session, April 21, 2010. Washington: U.S. G.P.O., 2011.
MLA (9th ed.) CitationUnited States. Congress. House. Committee on Oversight and Government Reform. The Washington Metro System: Safety, Service, and Stability : Hearing Before the Committee on Oversight and Government Reform, House of Representatives, One Hundred Eleventh Congress, Second Session, April 21, 2010. U.S. G.P.O., 2011.