APA (7th ed.) Citation

Verdi, G., Piave, F. M., & Grünbaum, J. C. (1981). Rigoletto: Musikdrama in 3 Akten (Textbuch.). Peters.

Chicago Style (17th ed.) Citation

Verdi, Giuseppe, Francesco Maria Piave, and Johann Christoph Grünbaum. Rigoletto: Musikdrama in 3 Akten. Textbuch. Leipzig [u.a.]: Peters, 1981.

MLA (9th ed.) Citation

Verdi, Giuseppe, et al. Rigoletto: Musikdrama in 3 Akten. Textbuch. Peters, 1981.