@book{46499,
	author = {Jupp, Victor. and ebrary, Inc.},
	title = {Methods of criminological research},
	publisher = {Unwin Hyman,},
	year = {1989.},
	series = {Contemporary social research series ;},
	address = {London ;},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10060829}
}