APA (7th ed.) Citation

Roberts, J. M. (1988). The Pelican history of the world (Revised edition.). Penguin Books.

Chicago Style (17th ed.) Citation

Roberts, J. M. The Pelican History of the World. Revised edition. London, England: Penguin Books, 1988.

MLA (9th ed.) Citation

Roberts, J. M. The Pelican History of the World. Revised edition. Penguin Books, 1988.