APA (7th ed.) Citation

Beethoven, L. v. (1991). Fidelio: [Oper in zwei Akten]. Castle.

Chicago Style (17th ed.) Citation

Beethoven, Ludwig van. Fidelio: [Oper in Zwei Akten]. [Hamburg]: Castle, 1991.

MLA (9th ed.) Citation

Beethoven, Ludwig van. Fidelio: [Oper in Zwei Akten]. Castle, 1991.

Warning: These citations may not always be 100% accurate.