APA (7th ed.) Citation

Patterson, J., Bergen, J., & Longstreth, A. (2015). Middle school: Ultimate showdown. Young Arrow.

Chicago Style (17th ed.) Citation

Patterson, James, Julia Bergen, and Alec Longstreth. Middle School: Ultimate Showdown. London: Young Arrow, 2015.

MLA (9th ed.) Citation

Patterson, James, et al. Middle School: Ultimate Showdown. Young Arrow, 2015.