Goldfarb, B. (2018). Eager: The surprising, secret life of beavers and why they matter.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रGoldfarb, Ben. Eager: The Surprising, Secret Life of Beavers and Why They Matter. 2018.
एमएलए (8वां संस्करण) प्रशस्ति पत्रGoldfarb, Ben. Eager: The Surprising, Secret Life of Beavers and Why They Matter. 2018.
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