APA (7th ed.) Citation

Wollenhaupt, H. A., & Burdick, I. (1905). Etude: Op.22, no. 1. Century Music.

Chicago Style (17th ed.) Citation

Wollenhaupt, Hermann Adolf, and Irving Burdick. Etude: Op.22, No. 1. New York: Century Music, 1905.

MLA (9th ed.) Citation

Wollenhaupt, Hermann Adolf, and Irving Burdick. Etude: Op.22, No. 1. Century Music, 1905.