Cita APA (7th ed.)

Schumann, R. A. (1971). Original compositions for piano duet. International Music Co.

Cita Chicago (17th ed.)

Schumann, Robert Alexander. Original Compositions for Piano Duet. New York: International Music Co, 1971.

Cita MLA (9th ed.)

Schumann, Robert Alexander. Original Compositions for Piano Duet. International Music Co, 1971.