APA (7th ed.) Citation

Ada, A. F., Costigan, S., & Myers, A. (1993). Bear's walk: A never ending story. Hampton-Brown Books.

Chicago Style (17th ed.) Citation

Ada, Alma Flor, Shirley Costigan, and Amy Myers. Bear's Walk: A Never Ending Story. Carmel, Calif.: Hampton-Brown Books, 1993.

MLA (9th ed.) Citation

Ada, Alma Flor, et al. Bear's Walk: A Never Ending Story. Hampton-Brown Books, 1993.