@book{13857,
	author = {Willoughby, David.},
	title = {The world of music /},
	publisher = {McGraw-Hill,},
	year = {c1999.},
	address = {Boston :},
	edition = {4th ed.},
	url = {http://www.loc.gov/catdir/description/mh023/98012648.html}
}