@book{227720,
	author = {Hannah, Gail Greet. and ebrary, Inc.},
	title = {Elements of design},
	publisher = {Princeton Architectural Press,},
	year = {c2002.},
	series = {Design briefs : essential texts on design},
	address = {New York :},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10453752}
}