Part 5: impact aid : hearings before the Subcommittee on Elementary, Secondary, and Vocational Education of the Committee on Education and Labor, House of Representatives, Ninety-fifth Congress, first session on H.R. 15, to extend for five years certain elementary, secondary, and other education programs, hearings held in Washington, D.C., June 21, 22, 23, 28, 29, 30, 1977