@book{171925,
	author = {ebrary, Inc.},
	title = {Nutrient requirements of sheep},
	publisher = {National Academy of Press,},
	year = {1985.},
	series = {Nutrient requirements of domestic animals ;},
	address = {Washington, D.C. :},
	edition = {6th rev. ed.},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10056761}
}