@book{5792,
	author = {Gupta, P.K.},
	title = {Methods in environmental analysis :},
	publisher = {Agrobios,},
	year = {2011.},
	series = {2nd edition.},
	address = {[S.l.] :},
	url = {http://www.amazon.com/exec/obidos/ASIN/8177543083/chopaconline-20}
}