Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (9a ed.)

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