Homeland Security contracting [electronic resource] : does the Department effectively leverage emerging technologies? : hearing before the Subcommittee on Oversight, Investigations, and Management of the Committee on Homeland Security, House of Representatives, One Hundred Twelfth Congress, first session, July 15, 2011.
Imprint
Washington : U.S. G.P.O. : For sale by the Supt. of Docs., U.S. G.P.O., 2012.