Mulligan, W. (2017). The origins of the first world war (Second edition.). Cambridge University Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रMulligan, William. The Origins of the First World War. Second edition. Cambridge, United Kingdom ; New York, NY: Cambridge University Press, 2017.
एमएलए (8वां संस्करण) प्रशस्ति पत्रMulligan, William. The Origins of the First World War. Second edition. Cambridge University Press, 2017.
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