Murphy, B. (2015). 81 days below zero: The incredible survival story of a World War II pilot in Alaska's frozen wilderness. Da Capo Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रMurphy, Brian. 81 Days Below Zero: The Incredible Survival Story of a World War II Pilot in Alaska's Frozen Wilderness. Boston, MA: Da Capo Press, 2015.
एमएलए (8वां संस्करण) प्रशस्ति पत्रMurphy, Brian. 81 Days Below Zero: The Incredible Survival Story of a World War II Pilot in Alaska's Frozen Wilderness. Da Capo Press, 2015.
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