Correspondences between Lyndon B. Johnson, Dr. Edgardo Seoane, and Dr. Carlos Sanz de SantamariaLyndon Baines Johnson LibraryNSF Agency File Box 5Alliance for Progress Vol. II [2 of 2]Agency File431965-01-22-1965-10-271965-01-221965-10-27Alliance for ProgressJohnson, Lyndon B. (Lyndon Baines), 1908-1973Inter-American Committee on the Alliance for ProgressRusk, Dean, 1909-1994Charter of Punta del EsteSeoane, EdgardoInter-American Economic and Social CouncilVaughn, JackSanz de Santamaría, CarlosJohnson, Lyndon B. (Lyndon Baines), 1908-1973ContributorSeoane, EdgardoContributortext