APA (7th ed.) Citation

Spergel, I. A. (1993). Gang Suppression and Intervention: An Assessment. United States Office of Juvenile Justice and Delinquency Prevention.

Chicago Style (17th ed.) Citation

Spergel, Irving A. Gang Suppression and Intervention: An Assessment. [Erscheinungsort nicht ermittelbar]: United States Office of Juvenile Justice and Delinquency Prevention, 1993.

MLA (9th ed.) Citation

Spergel, Irving A. Gang Suppression and Intervention: An Assessment. United States Office of Juvenile Justice and Delinquency Prevention, 1993.