Potter, J. (2000). The Cambridge companion to singing. Cambridge University Press.
Dyfyniad Arddull ChicagoPotter, John. The Cambridge Companion to Singing. New York: Cambridge University Press, 2000.
Dyfyniad MLAPotter, John. The Cambridge Companion to Singing. Cambridge University Press, 2000.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.