APA Style

ORWELL, George. (). Animal Farm . : London: Penguin Books, 1989.

Chicago Style

ORWELL, George. Animal Farm. : London: Penguin Books, 1989, . .

MLA Style

ORWELL, George. Animal Farm. : London: Penguin Books, 1989, . .

Turabian Style

ORWELL, George. Animal Farm. : London: Penguin Books, 1989, . .