To authorize acquisition of property for an international center : Hearing before a Special Subcommittee of the Committee on Foreign Relations, United States Senate, Eighty-ninth Congress, second session on, S. 2710 to authorize the acquisition, transfer, conveyance, and lease of certain property in the District of Columbia for use as a headquarters site for the organization of American states, and as sites for governments of foreign countries, March 25, 1966.