@book{53662,
	author = {Duke, Catherine V. A. and Williams, C. D.},
	title = {Chemistry for environmental and Earth sciences /},
	publisher = {CRC Press,},
	year = {c2008},
	address = {Boca Raton :},
	url = {http://www.loc.gov/catdir/enhancements/fy0827/2007015239-d.html}
}