@book{623,
	author = {Van Leeuwen, Theo,},
	title = {Speech, music, sound /},
	publisher = {Macmillan Press ;},
	year = {1999.},
	address = {Houndmills, Basingstoke, Hampshire :},
	url = {http://www.loc.gov/catdir/bios/hol057/99025839.html}
}