All, J., & Balzar, J. (2017). Icefall: Adventures at the wild edges of our dangerous, changing planet (First edition.). PublicAffairs.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रAll, John, और John Balzar. Icefall: Adventures at the Wild Edges of Our Dangerous, Changing Planet. First edition. New York: PublicAffairs, 2017.
एमएलए (8वां संस्करण) प्रशस्ति पत्रAll, John, और John Balzar. Icefall: Adventures at the Wild Edges of Our Dangerous, Changing Planet. First edition. PublicAffairs, 2017.
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