APA (7th ed.) Citation

Howell, J. C. 1., Griffiths, E., Tita, G. E., & Egley, J. (2011). U.S. Gang Problem Trends and Seriousness, 1996-2009. Office of Juvenile Justice and Delinquency Prevention.

Chicago Style (17th ed.) Citation

Howell, James C. 19XX-, Elizabeth Griffiths, George E. Tita, and Jr Egley. U.S. Gang Problem Trends and Seriousness, 1996-2009. Office of Juvenile Justice and Delinquency Prevention, 2011.

MLA (9th ed.) Citation

Howell, James C. 19XX-, et al. U.S. Gang Problem Trends and Seriousness, 1996-2009. Office of Juvenile Justice and Delinquency Prevention, 2011.