@book{12961,
	author = {Ashford, F.C.},
	title = {Aesthetics of engineering design /},
	publisher = {Century,},
	year = {1969.},
	address = {[S.l.] :},
	url = {http://www.amazon.com/exec/obidos/ASIN/0220798559/chopaconline-20}
}