APA (7th ed.) Citation

Knowles, B., Tedder, R., Bogart, E., Anders, A., Davis, T., & Lojeski, E. (2008). Halo: From Girls' sing off. Hal Leonard.

Chicago Style (17th ed.) Citation

Knowles, Beyonce, Ryan Tedder, Evan Bogart, Adam Anders, Tim Davis, and Ed Lojeski. Halo: From Girls' Sing off. Milwaukee, Wis: Hal Leonard, 2008.

MLA (9th ed.) Citation

Knowles, Beyonce, et al. Halo: From Girls' Sing off. Hal Leonard, 2008.