@book{22994,
	author = {Shull, A. Franklin},
	title = {Heredity /},
	publisher = {McGraw-Hill Book Co.,},
	year = {c1948.},
	series = {McGraw-Hill publications in the zoological sciences},
	address = {New York :},
	edition = {4th ed.},
	note = {Includes Index.}
}