APA (7th ed.) Citation

Cowell, J. (1955). Sonata in D-flat (1955). [publisher not identified].

Chicago Style (17th ed.) Citation

Cowell, John. Sonata in D-flat (1955). Tacoma: [publisher not identified], 1955.

MLA (9th ed.) Citation

Cowell, John. Sonata in D-flat (1955). [publisher not identified], 1955.

Warning: These citations may not always be 100% accurate.