APA (7th ed.) Citation

Sadie, S., & Macy, L. W. (2009). The Grove book of operas (2nd ed.). Oxford University Press.

Chicago Style (17th ed.) Citation

Sadie, Stanley, and Laura Williams Macy. The Grove Book of Operas. 2nd ed. Oxford [England] ; New York: Oxford University Press, 2009.

MLA (9th ed.) Citation

Sadie, Stanley, and Laura Williams Macy. The Grove Book of Operas. 2nd ed. Oxford University Press, 2009.