APA (7th ed.) Citation

Collins, W., & Stewart, J. I. M. (1986). The moonstone. Penguin Books.

Chicago Style (17th ed.) Citation

Collins, Wilkie, and J. I. M. Stewart. The Moonstone. London: Penguin Books, 1986.

MLA (9th ed.) Citation

Collins, Wilkie, and J. I. M. Stewart. The Moonstone. Penguin Books, 1986.