Randolph-Sheppard Act for the Blind Amendments of 1971: Hearings Before the Subcommittee on Handicapped Workers..., 92-1, on S. 2506, to Amend the Randolph-Sheppard Act for the Blind So as to Make Certain Improvements Therein, and for Other Purposes, September 22, October 1, and December 9, 1971