APA (7th ed.) Citation

Cowell, H. (1940). Maestoso: [for piano]. New Music Society of California.

Chicago Style (17th ed.) Citation

Cowell, Henry. Maestoso: [for Piano]. Los Angeles, Calif: New Music Society of California, 1940.

MLA (9th ed.) Citation

Cowell, Henry. Maestoso: [for Piano]. New Music Society of California, 1940.