by
Sieberg, Katri K.
Format:
Books
Publication Date
2005
Excerpt:
. Conclusion -- 5. Gangs -- 5.1. Gangs as drug enterprises -- 5.2. Gangs as alliances -- 5.3. Extortion model
by
Newman, Graeme R.
Format:
Books
Publication Date
1999
Excerpt:
Drug abuse -- Prevention.
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