@book{129330,
	author = {Harrington, H. J. and Hoffherr, Glen D. and ebrary, Inc.},
	title = {Area activity analysis},
	publisher = {McGraw-Hill,},
	year = {c1999.},
	series = {Harrington's performance improvement series},
	address = {New York :},
	url = {http://site.ebrary.com/lib/strathmore/Doc?id=10152715}
}