APA (7 वां संस्करण) प्रशस्ति पत्र

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

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

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

एमएलए (9वां संस्करण) प्रशस्ति पत्र

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