@book{9200,
	author = {Crocker, Richard L. and Basart, Ann Phillips,},
	title = {Listening to music},
	publisher = {McGraw-Hill Book Co.},
	year = {[c1971]},
	address = {New York,},
	note = {Illus. consists of diagrs. and a notation showing the "relative lengths and pitches of notes."}
}