Where have all the letters gone? : the mailing industry and its future : hearing before the Subcommittee on Federal Workforce, U.S. Postal Service, and Labor Policy of the Committee on Oversight and Government Reform, House of Representatives, One Hundred Twelfth Congress, first session, May 12, 2011.
Washington : U.S. G.P.O. : For sale by the Supt. of Docs., U.S. G.P.O., 2011.