APA (7th ed.) Citation

Gregor, J. (1942). Kulturgeschichte der Oper. Gallus.

Chicago Style (17th ed.) Citation

Gregor, Joseph. Kulturgeschichte Der Oper. Wien: Gallus, 1942.

MLA (8th ed.) Citation

Gregor, Joseph. Kulturgeschichte Der Oper. Gallus, 1942.

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