APA (7th ed.) Citation

Delau, R., & Thienel, S. (1985). Die dritte Semperoper (o. A.).

Chicago Style (17th ed.) Citation

Delau, Reinhard, and Siegfried Thienel. Die Dritte Semperoper. o. A. Dresden, 1985.

MLA (8th ed.) Citation

Delau, Reinhard, and Siegfried Thienel. Die Dritte Semperoper. o. A. 1985.

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