@book{15817,
	author = {Legates, James Edward. and Warwick, Everett James,},
	title = {Breeding and improvement of farm animals /},
	publisher = {McGraw-Hill,},
	year = {c1990.},
	address = {New York :},
	edition = {8th ed.},
	note = {Warwick's name appears first on the earlier edition.}
}