@book{183589,
	author = {Havil, Julian, and ebrary, Inc.},
	title = {Nonplussed!},
	publisher = {Princeton University Press,},
	year = {2010.},
	address = {Princeton, N.J. ;},
	note = {Includes index.},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10409302}
}