Title from title screen (viewed on Sept. 4, 2008).
"Comprehensive Gang Model developed by Dr. Irving Spergel and his colleagues at the University of Chicago"--Acknowledgments.
Bibliography
Includes bibliographical references (p. 35).
Funding
This document was prepared by the National Youth Gang Center under cooperative agreement ... from the Office of Juvenile Justice and Delinquency Prevention (OJJDP) 2007-JV-FX-0008