APA (7th ed.) Citation

Hemingway, E. (1955). To have and have not. Penguin Books.

Chicago Style (17th ed.) Citation

Hemingway, Ernest. To Have and Have Not. Harmondsworth: Penguin Books, 1955.

MLA (9th ed.) Citation

Hemingway, Ernest. To Have and Have Not. Penguin Books, 1955.