@book{31274,
	author = {Peck, Roxy. and Olsen, Chris,},
	title = {Introduction to statistics and data analysis /},
	publisher = {Brooks/Cole,},
	year = {2001.},
	address = {Pacific Grove, CA :},
	url = {http://www.loc.gov/catdir/enhancements/fy1215/00033734-d.html}
}