Mulligan, W. (2017). The origins of the first world war (Second edition.). Cambridge University Press.
Chicago Style aipamenaMulligan, William. The Origins of the First World War. Second edition. Cambridge, United Kingdom ; New York, NY: Cambridge University Press, 2017.
MLA aipamenaMulligan, William. The Origins of the First World War. Second edition. Cambridge University Press, 2017.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.