@book{124033,
	author = {Engerman, Stanley L. and ebrary, Inc.},
	title = {Long-term factors in American economic growth},
	publisher = {University of Chicago Press,},
	year = {1992, c1986.},
	series = {Studies in income and wealth ;},
	address = {Chicago :},
	edition = {Pbk. ed.},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10209947}
}