Greenberg, Brian; Watts, Linda S.; Greenwald, Richard A.; Reavley, Gordon; George, Alice L.; Beekman, Scott; Bucki, Cecelia; Ciabattari, Mark; Stoner, John C.; Paino, Troy D.; Mercier, Laurie; Hunt, Andrew; Holloran, Peter C.; Cohen, Nancy (October 23, 2008). Social History of the United States. p. 234. ISBN9781598841282. Retrieved July 27, 2017.