APA (7th ed.) Citation

Smith, S., & Hofmann, C. (1900). The eolian harp: La harpe eolienne. Century Music.

Chicago Style (17th ed.) Citation

Smith, Sidney, and Carl Hofmann. The Eolian Harp: La Harpe Eolienne. New York: Century Music, 1900.

MLA (9th ed.) Citation

Smith, Sidney, and Carl Hofmann. The Eolian Harp: La Harpe Eolienne. Century Music, 1900.