@book{3020,
	author = {Tebbutt, T. H. Y.},
	title = {Principles of water quality control /},
	publisher = {ButterWorth-Heinemann,},
	year = {1998.},
	address = {Boston, Mass. :},
	edition = {5th ed.},
	url = {http://www.loc.gov/catdir/description/els032/97049852.html}
}