APA (7th ed.) Citation

Spear, T. G. P. (1965). A history of India. Penguin Books.

Chicago Style (17th ed.) Citation

Spear, Thomas George Percival. A History of India. England: Penguin Books, 1965.

MLA (9th ed.) Citation

Spear, Thomas George Percival. A History of India. Penguin Books, 1965.