APA (7th ed.) Citation

Bing, R. (1981). A knight at the opera. Putnam.

Chicago Style (17th ed.) Citation

Bing, Rudolf. A Knight at the Opera. New York: Putnam, 1981.

MLA (9th ed.) Citation

Bing, Rudolf. A Knight at the Opera. Putnam, 1981.

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