APA (7th ed.) Citation

Naipaul, V. S. (1971). In a free state. Penguin Books.

Chicago Style (17th ed.) Citation

Naipaul, V. S. In a Free State. Harmondsworth: Penguin Books, 1971.

MLA (9th ed.) Citation

Naipaul, V. S. In a Free State. Penguin Books, 1971.