@book{93335,
	author = {Paton, G. W. and Derham, David P.},
	title = {A textbook of jurisprudence /},
	publisher = {Clarendon Press,},
	year = {1947.},
	address = {Oxford :},
	edition = {2nd ed.},
	url = {http://www.loc.gov/catdir/enhancements/fy0636/73158048-d.html}
}