President Carter's social security proposals. Part 1 : hearings before the Subcommittee on Social Security of the Committee on Ways and Means, House of Representatives, Ninety-fifth Congress, first sessionon, President Carter's social security proposals, May 10; July 18, 19, 20, 21, 22, 26, and 27, 1977, part 1 of 2, May 10; July 18, 19, and 20, 1977