APA (7th ed.) Citation

Spear, P., & Grenville, J. A. S. (1978). A history of India. Penguin Books.

Chicago Style (17th ed.) Citation

Spear, Percival, and J. A. S. Grenville. A History of India. London ; New Delhi: Penguin Books, 1978.

MLA (8th ed.) Citation

Spear, Percival, and J. A. S. Grenville. A History of India. Penguin Books, 1978.