Cita APA (7a ed.)

Sor, F. (1948). Twelve etudes for the guitar, op.29. B. Mills.

Cita Chicago Style (17a ed.)

Sor, Fernando. Twelve Etudes for the Guitar, Op.29. New York: B. Mills, 1948.

Cita MLA (8a ed.)

Sor, Fernando. Twelve Etudes for the Guitar, Op.29. B. Mills, 1948.