APA

Sadie, S. (1992). The New Grove dictionary of opera.

MLA

Sadie, Stanley. The New Grove Dictionary of Opera. , 1992. Print.

CHICAGO

Sadie, Stanley. 1992. The New Grove dictionary of opera.

HARVARD

SADIE, S. (1992). The New Grove dictionary of opera.

TURABIAN

Sadie, Stanley. The New Grove Dictionary of Opera. 1992.