@book{3356,
	author = {Nielsen, David. and Nielsen, Gillian L.},
	title = {The essential handbook of ground-water sampling /},
	publisher = {CRC Press/Taylor & Francis,},
	year = {c2007.},
	address = {Boca Raton, FL :},
	url = {http://www.loc.gov/catdir/enhancements/fy0661/2006045060-d.html}
}