Bannick, P. (2008). The owl and the woodpecker: Encounters with North America's most iconic birds. Mountaineers Books.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रBannick, Paul. The Owl and the Woodpecker: Encounters with North America's Most Iconic Birds. Seattle, Wash.: Mountaineers Books, 2008.
एमएलए (8वां संस्करण) प्रशस्ति पत्रBannick, Paul. The Owl and the Woodpecker: Encounters with North America's Most Iconic Birds. Mountaineers Books, 2008.
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