@book{11560,
	author = {Hauver, W. E. and Hamann, John Adolf,},
	title = {Egg grading manual /},
	publisher = {U.S. Dept. of Agriculture, Agricultural Marketing service,},
	year = {1955.},
	series = {Agriculture handbook / United States Department of Agriculture ;},
	address = {Washington, D.C. :},
	note = {Cover title.}
}