@book{42082,
	author = {Masters, Gilbert M. and Ela, Wendell},
	title = {Introduction to environmental engineering and science /},
	publisher = {Prentice Hall ,},
	year = {c2008},
	address = {Upper Sadle River, NJ :},
	edition = {3rd ed.},
	url = {http://www.loc.gov/catdir/toc/ecip0717/2007019018.html}
}