@book{7866,
	author = {Fennell, Francis M,},
	title = {Mathematics Unlimited :},
	publisher = { Holt, Rinehart, and Winston, Inc.},
	year = {c1988.},
	address = {United States of America ;},
	url = {http://www.loc.gov/catdir/enhancements/fy0815/00066061-d.html}
}