@book{80148,
	author = {Hill, Marquita K. and ebrary, Inc.},
	title = {Understanding environmental pollution},
	publisher = {Cambridge,},
	year = {2004.},
	address = {Cambridge, UK ;},
	edition = {2nd ed.},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10131751}
}