@book{11471,
	author = {Heterosis Conference and Gowen, John Whittemore,},
	title = {Heterosis :},
	publisher = {Iowa State College Press,},
	year = {1952.},
	address = {Ames :},
	note = {Papers presented at the Heterosis Conference held at Iowa State College, June 15 to July 20, 1950.}
}