@book{79469,
	author = {Perkins, Dexter, and Snell, John L. and American Historical Association.},
	title = {The education of historians in the United States /},
	publisher = {McGraw-Hill,},
	year = {1962.},
	address = {New York :},
	note = {This study was sponsored by the American Historical Association through its Committee on Graduate Education.}
}