APA (7 वां संस्करण) प्रशस्ति पत्र

Time-Life Books. (1997). What life was like when longships sailed: Vikings AD 800-1100. Time-Life Books.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Time-Life Books. What Life Was like When Longships Sailed: Vikings AD 800-1100. Alexandria, Va: Time-Life Books, 1997.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

Time-Life Books. What Life Was like When Longships Sailed: Vikings AD 800-1100. Time-Life Books, 1997.