APA (7th ed.) Citation

Werfel, F. (1972). Verdi; Roman der Oper. AMS Press.

Chicago Style (17th ed.) Citation

Werfel, Franz. Verdi; Roman Der Oper. New York: AMS Press, 1972.

MLA (8th ed.) Citation

Werfel, Franz. Verdi; Roman Der Oper. AMS Press, 1972.

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