@book{147641,
	author = {Hough, Graham Goulden,},
	title = {Selected essays /},
	publisher = {Cambridge University Press,},
	year = {1978.},
	address = {Cambridge, [Eng.] :},
	url = {http://www.loc.gov/catdir/enhancements/fy1004/77085692-d.html}
}