Work incentives in Social Security disability programs : joint hearing before the Subcommittee on Social Security and the Subcommittee on Human Resources of the Committee on Ways and Means, U.S. House of Representatives, One Hundred Twelfth Congress, first session, September 23, 2011.
Washington : U.S. G.P.O. : For sale by the Supt. of Docs., U.S. G.P.O., 2012.