@book{35642,
	author = {Enger, Eldon D. and Bradley F. Smith},
	title = {Envronmental science :},
	publisher = {Wm. C. Brown,},
	year = {c1992.},
	address = {Dubuque, IA :},
	edition = {4th ed.},
	note = {Includes appendices, references, glossary and index.}
}