Rose, A. (2020). Empires of the sky: Zeppelins, airplanes, and two men's epic duel to rule the world (First edition.). Random House.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रRose, Alexander. Empires of the Sky: Zeppelins, Airplanes, and Two Men's Epic Duel to Rule the World. First edition. New York: Random House, 2020.
एमएलए (8वां संस्करण) प्रशस्ति पत्रRose, Alexander. Empires of the Sky: Zeppelins, Airplanes, and Two Men's Epic Duel to Rule the World. First edition. Random House, 2020.
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