Cage, J. (1960). She is asleep: Duet [for] voice and prepared piano, 1943. Henmar Press.
Chicago Style (17th ed.) CitationCage, John. She Is Asleep: Duet [for] Voice and Prepared Piano, 1943. New York: Henmar Press, 1960.
MLA (9th ed.) CitationCage, John. She Is Asleep: Duet [for] Voice and Prepared Piano, 1943. Henmar Press, 1960.
Warning: These citations may not always be 100% accurate.