@book{156643,
	author = {Plytycz, Barbara. and ebrary, Inc.},
	title = {Earthworms for monitoring metal contamination},
	publisher = {Nova Science,},
	year = {c2009.},
	address = {New York :},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10680961}
}