@book{21901,
	author = {Shaw, Arthur Jonathan.},
	title = {Heavy metal tolerance in plants :},
	publisher = {CRC Press,},
	year = {c1990.},
	address = {Boca Raton, Fla. :},
	url = {http://www.loc.gov/catdir/enhancements/fy0744/89000927-d.html}
}