Style de citation APA (7e éd.)

Roberts, J. (1992). The penguin history of the world. Penguin.

Style de citation Chicago (17e éd.)

Roberts, J.M. The Penguin History of the World. 3rd.ed: Penguin, 1992.

Style de citation MLA (9e éd.)

Roberts, J.M. The Penguin History of the World. Penguin, 1992.