Vann, D. (2011). Last day on earth: A portrait of the NIU school shooter. University of Georgia Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रVann, David. Last Day on Earth: A Portrait of the NIU School Shooter. Athens: University of Georgia Press, 2011.
एमएलए (8वां संस्करण) प्रशस्ति पत्रVann, David. Last Day on Earth: A Portrait of the NIU School Shooter. University of Georgia Press, 2011.
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