APA (7th ed.) Citation

Sullivan, T., Maiken, P. T., & Maiken, P. T. (1983). Killer clown. Grosset & Dunlap.

Chicago Style (17th ed.) Citation

Sullivan, Terry, Peter T. Maiken, and Peter T. Maiken. Killer Clown. New York: Grosset & Dunlap, 1983.

MLA (8th ed.) Citation

Sullivan, Terry, et al. Killer Clown. Grosset & Dunlap, 1983.