Okimoto, J. D., & Trammell, J. (2007). Winston of Churchill: One bear's battle against global warming. Sasquatch Books.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रOkimoto, Jean Davies, और Jeremiah Trammell. Winston of Churchill: One Bear's Battle Against Global Warming. Seattle, Wash.: Sasquatch Books, 2007.
एमएलए (8वां संस्करण) प्रशस्ति पत्रOkimoto, Jean Davies, और Jeremiah Trammell. Winston of Churchill: One Bear's Battle Against Global Warming. Sasquatch Books, 2007.
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