APA (7th ed.) Citation

Kohs, E. B. (1950). Piano variations: [1946] ([Klavier].). Mercury Music Corp.

Chicago Style (17th ed.) Citation

Kohs, Ellis B. Piano Variations: [1946]. [Klavier]. New York, NY: Mercury Music Corp, 1950.

MLA (9th ed.) Citation

Kohs, Ellis B. Piano Variations: [1946]. [Klavier]. Mercury Music Corp, 1950.