APA (7th ed.) Citation

Wolff, H. C. (1972). Die Oper. Volk.

Chicago Style (17th ed.) Citation

Wolff, Hellmuth Christian. Die Oper. Köln: Volk, 1972.

MLA (8th ed.) Citation

Wolff, Hellmuth Christian. Die Oper. Volk, 1972.

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