@book{6226,
	author = {Dara, S.},
	title = {Textbook of environmental chemistry and pollution control /},
	publisher = {S Chand & Co Ltd,},
	year = {2004.},
	address = {[S.l.] :},
	edition = {7th ed.},
	url = {http://www.amazon.com/exec/obidos/ASIN/8121908833/chopaconline-20}
}