Gaya APA

Vaccai, N., Paton, J, G. (1975). Vaccai: Practical Method of Italian Singing:For Mezzo-Soprano (Alto) or Baritone . New York, USA: G. Schirmer. Inc..

Gaya MLA

Vaccai, Nicola., Paton, John, Glenn. "Vaccai: Practical Method of Italian Singing:For Mezzo-Soprano (Alto) or Baritone". New York, USA: G. Schirmer. Inc., 1975. Musical Score.