Validez de la cláusola Calvo frente al derecho de protección diplomática / Silvia Nelly de los Angeles Fernández Monter
Utilization of solar energy : special project no. 10 ; final report / Organization of American States, Regional Scientific and Technological Development Program, Department of Scientific and Technological Affairs ; 1984 Aprovechamiento de la energía solar
The use of some specific kinds of South American Indian snuff and related paraphernalia / by S. Henry Wassén
U.S. investments in the Latin American economy / [By Samuel Pizer and Frederick Cutler, Balance of Payments Division
Urbanizzazione e sottosviluppo : migrazioni interne, periferie ed emarginazione sociale in America latina
Urbanization in twentieth century Latin America : a working bibliography / compiled by Denton R. Vaughan