@book{49204,
	author = {Leder, Gilah C. and ebrary, Inc.},
	title = {Beliefs},
	publisher = {Kluwer Academic Publishers,},
	year = {2002.},
	series = {Mathematics education library ;},
	address = {Boston :},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10067541}
}