@book{226119,
	author = {Erickson, Martin.},
	title = {Beautiful mathematics},
	publisher = {Mathematical Association of America},
	year = {2011.},
	series = {MAA spectrum},
	address = {Washington, DC},
	edition = {1st ed.},
	note = {"Errata : index" (replacement pages 169-175) inserted.},
	url = {http://www.loc.gov/catdir/enhancements/fy1117/2011939398-b.html}
}