Contractors how much are they costing the government? : hearing before the Ad Hoc Subcommittee on Contracting Oversight of the Committee on Homeland Security and Governmental Affairs, United States Senate, One Hundred Twelfth Congress, second session, march 29, 2012.
Imprint
Washington : U.S. G.P.O. : For sale by the Supt. of Docs., U.S. G.P.O., 2012.
