APA-viite (7. p.)

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

Chicago-viite (17. p.)

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

MLA-viite (9. p.)

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