National Youth Gang Intervention and Suppression Survey, 1980-1987
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This survey was conducted by the National Youth Gang Intervention and Suppression Program. The primary goals of the program were to assess the national scope of the...
本次调查由全国青少年帮派干预与打击项目（National Youth Gang Intervention and Suppression Program）开展。该项目的首要目标是评估其在全国范围内的覆盖范围……
