Letter from Secretary of State Herter to Juan Callardo Moreno re: Criteria for Establishment & Operation of Inspection Stations at U.S.-Mex. Border, August 21, 1959
written by Christian Archibald Herter, 1895-1966, in General Records of the Department of State, 1763 - 2002 (RG59). Records Relating to the Chamizal Dispute with Mexico, 1947 - 1963 (A1 5145), of United States. National Archives and Records Administration. Federal Records (1959), Box 1, Chamizal 1956- , 2 page(s)