@book{7168,
	author = {Barnett, Raymond A. and Ziegler, Michael R.},
	title = {College mathematics for business, economics, life sciences, and social sciences.},
	publisher = {Prentice Hall,},
	year = {c1999.},
	address = {Upper Saddle River, N.J. :},
	edition = {8th ed. /},
	note = {Includes index.}
}