@book{4414,
	author = { Sparks, Donald L},
	title = {Environmental soil chemistry / },
	publisher = {Academic Press,},
	year = {2003},
	address = { Amsterdam:},
	edition = {2nd},
	note = {Includes bibliographical references  and index},
	url = {http://172.20.27.22:4000/handle/123456789/143}
}
