@book{34798,
	author = {Freund, John E. and Perles, Benjamin M.,},
	title = {Modern elementary statistics /},
	publisher = {Pearson Prentice Hall,},
	year = {c2007.},
	address = {Upper Saddle River, N.J. :},
	edition = {12. ed.},
	url = {http://www.loc.gov/catdir/toc/fy0612/2005054616.html}
}