Cita APA (7a ed.)

Beethoven, L. v., & Unger, M. (1935). Overture to the opera Fidelio, op. 72b: (also no. 4 to the opera, "Leonore"). Eulenburg.

Cita Chicago Style (17a ed.)

Beethoven, Ludwig van, y Max Unger. Overture to the Opera Fidelio, Op. 72b: (also No. 4 to the Opera, "Leonore"). London: Eulenburg, 1935.

Cita MLA (8a ed.)

Beethoven, Ludwig van, y Max Unger. Overture to the Opera Fidelio, Op. 72b: (also No. 4 to the Opera, "Leonore"). Eulenburg, 1935.