By Le Bas, Harold.
Washington : OEA, 1968

By Raw, Isaías.
Washington : OEA, 1974

By Brieux, Jorge.
Washington : OEA, 1968

By Giral, Francisco.
Washington : OEA, 1969

By Penzhorn, H..
Washington : OEA, 1972

By Gonzalez Bonorino, Félix.
Washington : OEA, 1972

By Joseph-Nathan, Pedro.
Washigton : OEA, 1973

By Mc Nair, Harold.
Washington : OEA, 1973

By Crabbe, Pierre.
Washington : OEA, 1974

By Morcillo Rubio, Jesús.
Washington : OEA, 1974

By Arvia, Alejandro J..
Washington : OEA, 1974

By Mc Millan, Juan.
Washington : OEA, 1975

By Garbarino, Juan.
Washington : OEA, 1975

By Dominguez, Jorge.
Washington : OEA, 1975

By Gottlieb, Otto.
Washington : OEA, 1976

By Caneda, Rodolo.
Washington : OEA, 1978

By Diaz Peña, Mateo.
Washington : OEA, 1979

By Rabockai, Tibor.
Washington : OEA, 1979

By Galvele, José.
Washington : OEA, 1979

By Posadas, Dionisio.
Washington : OEA, 1980

By Mcnair, Harold.
Washington : OEA, 1981

By Carcamo, Edison.
Washington : OEA, 1981

By Bornemisza, E..
Washington : OEA, 1982

By Arvia, Alejandro J..
Washington : OEA, 1983