@book{38497,
	author = {Klein, Malcolm W. and Maxson, Cheryl Lee.},
	title = {Street gang patterns and policies},
	publisher = {Oxford University Press,},
	year = {2006.},
	series = {Studies in crime and public policy},
	address = {Oxford :},
	url = {http://dx.doi.org/10.1093/acprof:oso/9780195163445.001.0001}
}