APA (7th ed.) Citation

Callahan, W. T., & Knoblauch, R. (19). Prevention and control of collective violence. U.S. Dept. of Justice, Law Enforcement Assistance Administration.

Chicago Style (17th ed.) Citation

Callahan, William T., and Richard Knoblauch. Prevention and Control of Collective Violence. Washington, D.C: U.S. Dept. of Justice, Law Enforcement Assistance Administration, 19.

MLA (9th ed.) Citation

Callahan, William T., and Richard Knoblauch. Prevention and Control of Collective Violence. U.S. Dept. of Justice, Law Enforcement Assistance Administration, 19.