APA (7th ed.) Citation

Oxford University Press & O'Brien, P. (1999). Atlas of world history. Oxford University Press.

Chicago Style (17th ed.) Citation

Oxford University Press and Patrick O'Brien. Atlas of World History. New York, N.Y.: Oxford University Press, 1999.

MLA (9th ed.) Citation

Oxford University Press and Patrick O'Brien. Atlas of World History. Oxford University Press, 1999.