Dyfyniad APA

Bourne, J., & Kennedy, M. (1998). Who's who in opera: A guide to opera characters. Oxford University Press.

Dyfyniad Arddull Chicago

Bourne, Joyce, and Michael Kennedy. Who's Who in Opera: A Guide to Opera Characters. Oxford: Oxford University Press, 1998.

Dyfyniad MLA

Bourne, Joyce, and Michael Kennedy. Who's Who in Opera: A Guide to Opera Characters. Oxford University Press, 1998.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.