Haas, R. B. (2010). I dreamed of flying like a bird: My adventures photographing wild animals from a helicopter. National Geographic.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रHaas, Robert B. I Dreamed of Flying like a Bird: My Adventures Photographing Wild Animals from a Helicopter. Washington, D.C.: National Geographic, 2010.
एमएलए (8वां संस्करण) प्रशस्ति पत्रHaas, Robert B. I Dreamed of Flying like a Bird: My Adventures Photographing Wild Animals from a Helicopter. National Geographic, 2010.
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