Hughes, C. D. (2016). Little kids first big book of birds. National Geographic Partners.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रHughes, Catherine D. Little Kids First Big Book of Birds. Washington, DC: National Geographic Partners, 2016.
एमएलए (8वां संस्करण) प्रशस्ति पत्रHughes, Catherine D. Little Kids First Big Book of Birds. National Geographic Partners, 2016.
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