Howard, M., & Louis, W. R. (1998). The Oxford history of the twentieth century / edited by Michael Howard and Wm. Roger Louis. Oxford University Press.
Chicago Style (17th ed.) CitationHoward, Michael, and William Roger Louis. The Oxford History of the Twentieth Century / Edited by Michael Howard and Wm. Roger Louis. Oxford: Oxford University Press, 1998.
MLA (9th ed.) CitationHoward, Michael, and William Roger Louis. The Oxford History of the Twentieth Century / Edited by Michael Howard and Wm. Roger Louis. Oxford University Press, 1998.
Warning: These citations may not always be 100% accurate.