@book{86584,
	author = {Lewin, Roger, },
	title = {Complexity :},
	publisher = {University of Chicago Press,},
	year = {c1999.},
	address = {Chicago, Ill. :},
	edition = {2nd edition},
	url = {http://www.loc.gov/catdir/description/uchi051/99038597.html}
}