Cita APA (7a ed.)
Douglas, J. E. (2013). Crime classification manual: A standard system for investigating and classifying violent crimes (3rd ed.). Wiley.
Cita Chicago Style (17a ed.)
Douglas, John E. Crime Classification Manual: A Standard System for Investigating and Classifying Violent Crimes. 3rd ed. Hoboken, N.J.: Wiley, 2013.
Cita MLA (9a ed.)
Douglas, John E. Crime Classification Manual: A Standard System for Investigating and Classifying Violent Crimes. 3rd ed. Wiley, 2013.
警告：這些引文格式不一定是100％准確.