@book{19674,
	author = {Sokal, Robert R. and Rohlf, F. James,},
	title = {Biometry :},
	publisher = {W.H. Freeman,},
	year = {c1969.},
	address = {San Francisco :},
	url = {http://www.loc.gov/catdir/enhancements/fy0912/94011120-d.html}
}