@book{150946,
	author = {Hale, Margie. and ebrary, Inc.},
	title = {Essentials of mathematics},
	publisher = {Mathematical Association of America,},
	year = {c2003.},
	series = {Classroom resource materials},
	address = {[Washington, D.C.] :},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10733085}
}