APA (7th ed.) Citation

Willwerth, J. (1977). Badge of madness: The true story of a psychotic cop. M. Evans.

Chicago Style (17th ed.) Citation

Willwerth, James. Badge of Madness: The True Story of a Psychotic Cop. New York: M. Evans, 1977.

MLA (9th ed.) Citation

Willwerth, James. Badge of Madness: The True Story of a Psychotic Cop. M. Evans, 1977.