@book{497825,
	author = {Aydelotte, William Osgood},
	title = {The Dimensions of quantitative research in history / },
	publisher = {Oxford University Press,},
	year = {1972.},
	address = {London  :},
	url = {http://www.loc.gov/catdir/enhancements/fy1504/73175625-d.html}
}