Space needs of the federal government : hearings before the Subcommittee on Public Buildings and Grounds of the Committee on Public Works and Transportation, House of Representatives, Ninety-seventh Congress, first and second sessions, on H.R. 1938 ... May 5, 7; September 22, 29; October 1, 6, 7, 14, 15, 27, 29; November 12, 1981; February 11, 1982, at Kansas City, Kans.; February 11, 1982, at Kansas City, Mo.; February 12, 1982, at Denver, Colo.; and March 1, 1982, at Chicago, Ill.