@book{86509,
	author = {Kluger, Jeffrey. and Vilà, Lara},
	title = {Simplejidad :},
	publisher = {Ariel,},
	year = {2009.},
	address = {Barcelona :},
	note = {Includes index.},
	url = {http://www.loc.gov/catdir/enhancements/fy1204/2009281364-d.html}
}