Internal Revenue Service operations and the 2011 tax return filing season : hearing before the Subcommittee on Oversight of the Committee on Ways and Means, U.S. House of Representatives, One Hundred Twelfth Congress, first session, March 31, 2011.
Washington : U.S. G.P.O. : For sale by the Supt. of Docs., U.S. G.P.O., 2011.