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Irving A. Spergel的作品

Cover for Irving A. Spergel · Reducing Youth Gang Violence: The Little Village Gang Project in Chicago - Violence Prevention and Policy (Hardcover Book) (2007)
Hardcover Book
Reducing Youth Gang Violence: Th...
Irving A. Spergel
Cover for Irving A. Spergel · Reducing Youth Gang Violence: The Little Village Gang Project in Chicago - Violence Prevention and Policy (Paperback Book) (2007)
Paperback Book
Reducing Youth Gang Violence: Th...
Irving A. Spergel