@book{8384,
	author = {Underwood, Eric J. and Suttle, N. F.},
	title = {The mineral nutrition of livestock /},
	publisher = {CABI Pub.,},
	year = {c1999.},
	address = {Wallingford, Oxon, UK ;},
	edition = {3rd ed.},
	url = {http://www.loc.gov/catdir/enhancements/fy0604/99011802-d.html}
}