APA (7th ed.) Citation

Seuss, D., Fancher, L., & Johnson, S. (1996). My many colored days. Knopf : Distributed by Random House.

Chicago Style (17th ed.) Citation

Seuss, Dr, Lou Fancher, and Steve Johnson. My Many Colored Days. New York: Knopf : Distributed by Random House, 1996.

MLA (8th ed.) Citation

Seuss, Dr, et al. My Many Colored Days. Knopf : Distributed by Random House, 1996.