Gerle, A., & Gerle, A. (2018). Music essentials for singers and actors: Fundamentals of notation, sight singing, and music theory. Hal Leonard.
Citazione stile Chigago Style (17a edizione)Gerle, Andrew, e Andrew Gerle. Music Essentials for Singers and Actors: Fundamentals of Notation, Sight Singing, and Music Theory. Milwaukee, WI: Hal Leonard, 2018.
Citatione MLA (9a ed.)Gerle, Andrew, e Andrew Gerle. Music Essentials for Singers and Actors: Fundamentals of Notation, Sight Singing, and Music Theory. Hal Leonard, 2018.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.