APA (7th ed.) Citation

Elwell, H., & Frost, R. (1946). The sound of the trees. Broadcast Music.

Chicago Style (17th ed.) Citation

Elwell, Herbert, and Robert Frost. The Sound of the Trees. New York: Broadcast Music, 1946.

MLA (9th ed.) Citation

Elwell, Herbert, and Robert Frost. The Sound of the Trees. Broadcast Music, 1946.