@book{31068,
	author = {Gray, Theodore W. and Mann, Nick.},
	title = {The elements :},
	publisher = {Black Dog & Leventhal Publishers ;},
	year = {c2009.},
	address = {New York :},
	url = {http://www.loc.gov/catdir/enhancements/fy1012/2009034931-d.html}
}