Cahill, T. (2004). Lost in my own backyard: A walk in Yellowstone National Park. Crown Publishers.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रCahill, Tim. Lost in My Own Backyard: A Walk in Yellowstone National Park. New York: Crown Publishers, 2004.
एमएलए (8वां संस्करण) प्रशस्ति पत्रCahill, Tim. Lost in My Own Backyard: A Walk in Yellowstone National Park. Crown Publishers, 2004.
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