Whipple, A. (2020). Whooo knew?: The truth about owls (First edition hardcover.). Reycraft Books.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रWhipple, Annette. Whooo Knew?: The Truth About Owls. First edition hardcover. New York: Reycraft Books, 2020.
एमएलए (8वां संस्करण) प्रशस्ति पत्रWhipple, Annette. Whooo Knew?: The Truth About Owls. First edition hardcover. Reycraft Books, 2020.
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