APA (7th ed.) Citation

Verdi, G., & Cammarano, S. (1890). Der Troubadour: Oper in 4 Akten ([Textbuch].). Lucas.

Chicago Style (17th ed.) Citation

Verdi, Giuseppe, and Salvatore Cammarano. Der Troubadour: Oper in 4 Akten. [Textbuch]. Elberfeld: Lucas, 1890.

MLA (9th ed.) Citation

Verdi, Giuseppe, and Salvatore Cammarano. Der Troubadour: Oper in 4 Akten. [Textbuch]. Lucas, 1890.

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