APA-viite (7. p.)

Schoenfeld, M., & Mcpherson, B. (2002). Once Upon a Time. Hal Leonard Music Publishing.

Chicago-viite (17. p.)

Schoenfeld, Mark, ja Barri Mcpherson. Once Upon a Time. Wisconsin, United States: Hal Leonard Music Publishing, 2002.

MLA-viite (9. p.)

Schoenfeld, Mark, ja Barri Mcpherson. Once Upon a Time. Hal Leonard Music Publishing, 2002.