Potter, J. (1998). Vocal authority: Singing style and ideology. Cambridge University Press.
Dyfyniad Arddull ChicagoPotter, John. Vocal Authority: Singing Style and Ideology. New York: Cambridge University Press, 1998.
Dyfyniad MLAPotter, John. Vocal Authority: Singing Style and Ideology. Cambridge University Press, 1998.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.