@book{2338,
	author = {Maps.com (Firm)},
	title = {Principal rivers, roads, and canals, 1840},
	publisher = {Maps.com,},
	year = {c1999.},
	address = {[S.l.] :},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10002591}
}