@book{257027,
	author = {Gregory, K. E. and Cundiff, L. V., and United States.},
	title = {Composite breeds to use heterosis and breed differences to improve efficiency of beef production /},
	publisher = {United States Department of Agriculture, Agricultural Research Service,},
	year = {1999.},
	series = {Technical bulletin ;},
	address = {[Washington, D.C.] :},
	note = {Title from title screen (viewed October 13, 2016).},
	url = {http://purl.fdlp.gov/GPO/gpo73320}
}