Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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