@book{51669,
	author = {Graham, Norma Van Surdam. and ebrary, Inc.},
	title = {Visual pattern analyzers},
	publisher = {Oxford University Press,},
	year = {1989.},
	series = {Oxford psychology series ;},
	address = {New York :},
	note = {Includes indexes.},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10087163}
}