Citazione Stile APA (7a Edizione)
Christy, V. A., & Paton, J. G. (1990). Foundations of singing: A text book in vocal technique and song interpretation (5th .ed.). Wm. C. Brown.
Citazione stile Chigago Style (17a edizione)
Christy, Van A., e John Glenn Paton. Foundations of Singing: A Text Book in Vocal Technique and Song Interpretation. 5th .ed. U.S.A: Wm. C. Brown, 1990.
Citatione MLA (9a ed.)
Christy, Van A., e John Glenn Paton. Foundations of Singing: A Text Book in Vocal Technique and Song Interpretation. 5th .ed. Wm. C. Brown, 1990.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.