@book{1494,
	author = {Bryman, Alan. and Cramer, Duncan,},
	title = {Quantitative data analysis with minitab :},
	publisher = {Routledge,},
	year = {1996.},
	address = {London ;},
	url = {http://www.loc.gov/catdir/enhancements/fy0649/95044812-d.html}
}