Cita APA (7a ed.)

Lee, S., & Schulz, L. (1902). Forty melodic and progressive etudes for violoncello. G. Schirmer.

Cita Chicago Style (17a ed.)

Lee, Sebastian, y Leo Schulz. Forty Melodic and Progressive Etudes for Violoncello. New York: G. Schirmer, 1902.

Cita MLA (9a ed.)

Lee, Sebastian, y Leo Schulz. Forty Melodic and Progressive Etudes for Violoncello. G. Schirmer, 1902.