APA (7e ed.) Bronvermelding

Walters, R. (2000). Mezzo-Soprano, Belter: Comp. and ed. by Richard Walters. Hal Leonard.

Chicago (17e ed.) Bronvermelding

Walters, Richard. Mezzo-Soprano, Belter: Comp. and Ed. by Richard Walters. Milwaukee, Wis.: Hal Leonard, 2000.

MLA (8e ed.) Bronvermelding

Walters, Richard. Mezzo-Soprano, Belter: Comp. and Ed. by Richard Walters. Hal Leonard, 2000.