APA (7th ed.) Citation

Cage, J. (1961). Music for piano no. 20 (1953). Henmar Press.

Chicago Style (17th ed.) Citation

Cage, John. Music for Piano No. 20 (1953). New York: Henmar Press, 1961.

MLA (9th ed.) Citation

Cage, John. Music for Piano No. 20 (1953). Henmar Press, 1961.