Alegría tropical   Creator:   Alvarez, Mario ( composer ) Hermanos Rigual ( performer ) Rigual, Carlos ( composer ) Rigual, Mario ( composer ) Gil, A. Aurelia ( composer ) J. A. "Mantequilla" N. ( composer ) Publisher.Display:   Fono Rex Format:   1 sound disc : 33 1/3 rpm ; 12 in. Subjects.Display:   Latin pop (music) Source Institution:   Florida International University Alegría tropical	Los Dos Reales   Creator:   Pardave, Joaquín ( composer ) Los Dos Reales ( performer ) Cordero, Victor ( composer ) Publisher.Display:   Fono Rex ( Mexico ; ) Format:   1 sound disc : 45 rpm ; 7 in. Subjects.Display:   Popular music Source Institution:   Florida International University Los Dos Reales