Cero preocupacion   Creator:   Varela, Calixto ( composer ) Carlo, Marco De ( Performer ) Marrero, A. ( Performer ) Rodriguez, M. ( Performer ) Varela, C. ( Performer ) Sosias, W. ( Performer ) Publisher.Display:   Varel Format:   1 sound disc : 78 rpm ; 10 in. Source Institution:   Florida International University Donor:   Cristobal Diaz Ayala Cero preocupacion	Sin palabras   Creator:   Varela, Calixto ( composer ) Carlo, Marco De ( Performer ) Marrero, A. ( Performer ) Rodriguez, M. ( Performer ) Varela, C. ( Performer ) Sosias, W. ( Performer ) Publisher.Display:   Varel Format:   1 sound disc : 78 rpm ; 10 in. Source Institution:   Florida International University Donor:   Cristobal Diaz Ayala Sin palabras