@book{47547,
	author = {Ausubel, Jesse. and ebrary, Inc.},
	title = {Cities and their vital systems},
	publisher = {National Academy Press,},
	year = {1988.},
	series = {Series on technology and social priorities},
	address = {Washington, D.C. :},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10062934}
}