@book{331962,
	author = {Droppo, Ian G.},
	title = {Flocculation in natural and engineered environmental systems /},
	publisher = {CRC Press,},
	year = {c2005.},
	address = {Boca Raton :},
	note = {H.B},
	url = {http://www.loc.gov/catdir/enhancements/fy0646/2004056933-d.html}
}