@book{188995,
	author = {Paul, Eldor Alvin.},
	title = {Soil microbiology and biochemistry},
	publisher = {Academic Press},
	year = {c1996.},
	address = {San Diego},
	edition = {2nd ed.},
	url = {http://www.loc.gov/catdir/description/els032/96013958.html}
}