The concise Oxford dictionary of opera

MLA

Rosenthal, Harold, and John Warrack. The Concise Oxford Dictionary of Opera. Oxford: Oxford university press, 1992.

APA

Rosenthal, H., & Warrack, J. (1992). The concise Oxford dictionary of opera. Oxford: Oxford university press.

Chicago

Rosenthal, Harold, and John Warrack. The Concise Oxford Dictionary of Opera. Oxford: Oxford university press, 1992.