Los Cincuentones/ Trio Los Criollos   Creator:   Los Cincuentones ( performer ) Trio Los Criollos ( performer ) Delgado, Carlos ( composer ) Salas, J. ( composer ) Publisher.Display:   R-O-K Format:   1 sound disc : 45 rpm ; 7 in. Subjects.Display:   Popular music Source Institution:   Florida International University Los Cincuentones/ Trio Los Criollos	Trio Jose Ramon Ortiz   Creator:   Ortiz ( performer ) Gonzalez, Leopoldo ( composer ) Jose ( performer ) Ramon ( performer ) Publisher.Display:   R-O-K Format:   1 sound disc : 45 rpm ; 7 in. Subjects.Display:   Popular music Source Institution:   Florida International University Trio Jose Ramon Ortiz