Foreign assistance legislation, fiscal year 1972 : hearings before the Committee on Foreign Relations, Ninety-second Congress, first session on S. 1656, to authorize a new approach for furthering the economic and social development of friendly developing countries and areas, and for provision of humanitarian relief, and for other purposes and S. 1657, to consolidate and revise the Foreign Assistance Act of 1961, as amended, and other legislation relating to international security assistance, and for other purposes, June 10, and 14, 1971