@book{145137,
	author = {Sleeper, Andrew D. and ebrary, Inc.},
	title = {Design for Six Sigma statistics},
	publisher = {McGraw-Hill,},
	year = {c2006.},
	series = {Six sigma operational methods series},
	address = {New York :},
	url = {http://site.ebrary.com/lib/strathmore/Doc?id=10131959}
}