APA (7th ed.) Citation

Chapman, S. G. (1998). Murdered on duty: The killing of police officers in America (2nd ed.). Charles C. Thomas.

Chicago Style (17th ed.) Citation

Chapman, Samuel G. Murdered on Duty: The Killing of Police Officers in America. 2nd ed. Springfield, Ill.: Charles C. Thomas, 1998.

MLA (9th ed.) Citation

Chapman, Samuel G. Murdered on Duty: The Killing of Police Officers in America. 2nd ed. Charles C. Thomas, 1998.