APA (7th ed.) Citation

Hemingway, E. (1976). For whom the bell tolls. Triad/Panther Books.

Chicago Style (17th ed.) Citation

Hemingway, Ernest. For Whom the Bell Tolls. Frogmore: Triad/Panther Books, 1976.

MLA (9th ed.) Citation

Hemingway, Ernest. For Whom the Bell Tolls. Triad/Panther Books, 1976.

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