O'Brien, P. K. (1999). Oxford atlas of world history: The origins of humanity to the year 2000. New York: Oxford University Press.
Chicago Style CitationO'Brien, Patrick K. Oxford Atlas of World History: The Origins of Humanity to the Year 2000. New York: Oxford University Press, 1999.
MLA CitationO'Brien, Patrick K. Oxford Atlas of World History: The Origins of Humanity to the Year 2000. New York: Oxford University Press, 1999.
Warning: These citations may not always be 100% accurate.