APA (7th ed.) Citation

Bartok, B. (1939). Allegro barbaro: Piano solo. Hawkes.

Chicago Style (17th ed.) Citation

Bartok, Bela. Allegro Barbaro: Piano Solo. London: Hawkes, 1939.

MLA (9th ed.) Citation

Bartok, Bela. Allegro Barbaro: Piano Solo. Hawkes, 1939.