APA (7th ed.) Citation

Orwell, G. (1954). Nineteen eighty-four: A novel. Penguin.

Chicago Style (17th ed.) Citation

Orwell, George. Nineteen Eighty-four: A Novel. Harmondsworth: Penguin, 1954.

MLA (9th ed.) Citation

Orwell, George. Nineteen Eighty-four: A Novel. Penguin, 1954.