books.google.fr - In the past two decades, many prevention and suppression programs have been initiated on a national and local level to combat street gangs--but what do we really know about them? Why do youths join them? Why do they proliferate? Street Gang Patterns and Policies is a crucial update and critical examination...https://books.google.fr/books/about/Street_Gang_Patterns_and_Policies.html?hl=fr&id=VMFtWyjYeJ4C&utm_source=gb-gplus-shareStreet Gang Patterns and Policies
