@book{574,
	author = {Ritchey, Ferris Joseph.},
	title = {The statistical imagination :},
	publisher = {McGraw Hill,},
	year = {c2008.},
	address = {Boston :},
	edition = {2nd ed.},
	url = {http://www.loc.gov/catdir/enhancements/fy1009/2006046710-t.html}
}