@book{9377,
	author = {Sokal, Robert R. and Rohlf, F. James,},
	title = {Introduction to biostatistics /},
	publisher = {Dover Publications,},
	year = {2009.},
	address = {Mineola, N.Y. :},
	edition = {2nd ed., Dover ed.},
	url = {http://www.loc.gov/catdir/enhancements/fy0903/2008048052-d.html}
}