APA (7th ed.) Citation

Verdi, G. (1859). Der Troubadour.

Chicago Style (17th ed.) Citation

Verdi, Giuseppe. Der Troubadour. [S.l.], 1859.

MLA (9th ed.) Citation

Verdi, Giuseppe. Der Troubadour. 1859.

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