@book{187882,
	author = {Davis, Lance E. and North, Douglass C.},
	title = {Institutional change and American economic growth /},
	publisher = {University Press,},
	year = {1971.},
	address = {Cambridge [Eng.] :},
	url = {http://www.loc.gov/catdir/enhancements/fy0835/70155584-d.html}
}