@book{21420,
	author = {Wortley, Richard},
	title = {Situational Prison Control:},
	publisher = {Cambridge University Press,},
	year = {2002.},
	series = {Cambridge studies in criminology},
	address = {Cambridge, UK ;},
	url = {http://www.loc.gov/catdir/description/cam022/2001037952.html}
}