APA (7th ed.) Citation

Zentner, W. (1960). Reclams Opernführer (21. Verm. Aufl.). Reclam.

Chicago Style (17th ed.) Citation

Zentner, Wilhelm. Reclams Opernführer. 21. Verm. Aufl. Stuttgart: Reclam, 1960.

MLA (9th ed.) Citation

Zentner, Wilhelm. Reclams Opernführer. 21. Verm. Aufl. Reclam, 1960.

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