Line, P. (2015). The Vikings and their enemies: Warfare in Northern Europe, 750-1100 (First Skyhorse Publishing edition.). Skyhorse Publishing.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रLine, Philip. The Vikings and Their Enemies: Warfare in Northern Europe, 750-1100. First Skyhorse Publishing edition. New York, NY: Skyhorse Publishing, 2015.
एमएलए (8वां संस्करण) प्रशस्ति पत्रLine, Philip. The Vikings and Their Enemies: Warfare in Northern Europe, 750-1100. First Skyhorse Publishing edition. Skyhorse Publishing, 2015.
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