@book{138938,
	author = {Singer, Merrill. and Page, J. Bryan,},
	title = {The social value of drug addicts :},
	publisher = {Left Coast Press,},
	year = {2013.},
	address = {Walnut Creek, California :},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10796085}
}