APA-viite (7. p.)

Gerle, A., & Gerle, A. (2018). Music essentials for singers and actors: Fundamentals of notation, sight singing, and music theory. Hal Leonard.

Chicago-viite (17. p.)

Gerle, Andrew, ja Andrew Gerle. Music Essentials for Singers and Actors: Fundamentals of Notation, Sight Singing, and Music Theory. Milwaukee, WI: Hal Leonard, 2018.

MLA-viite (9. p.)

Gerle, Andrew, ja Andrew Gerle. Music Essentials for Singers and Actors: Fundamentals of Notation, Sight Singing, and Music Theory. Hal Leonard, 2018.