@book{29756,
	author = {Barnet, Raymond A. and Ziegler, Michael R.},
	title = {College mathematicvs for business, economics, life sciences and social sciences /},
	publisher = {Peatrson ,},
	year = {2011.},
	address = {Upper Saddle River :},
	edition = {12th ed.},
	note = {Include index.}
}