APA (7th ed.) Citation

Roberts, J. M. (1995). The Penguin history of the world / J.M. Roberts (3rd ed.). Penguin.

Chicago Style (17th ed.) Citation

Roberts, J. M. The Penguin History of the World / J.M. Roberts. 3rd ed. London: Penguin, 1995.

MLA (9th ed.) Citation

Roberts, J. M. The Penguin History of the World / J.M. Roberts. 3rd ed. Penguin, 1995.

Warning: These citations may not always be 100% accurate.