@book{7330,
	author = {Berenson, Mark L. and Levine, David M.},
	title = {Basic Business Statistics :},
	publisher = {Prentice Hall,},
	year = {2011.},
	address = {[S.l.] :},
	edition = {12th ed.},
	url = {http://www.amazon.com/exec/obidos/ASIN/0132168383/chopaconline-20}
}