Beer, J., & Harris, M. (2020). Pet records: The weirdest, cutest, biggest, coolest, tiniest, and smartest pets on the planet. National Geographic.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रBeer, Julie, और Michelle Harris. Pet Records: The Weirdest, Cutest, Biggest, Coolest, Tiniest, and Smartest Pets on the Planet. Washington, DC: National Geographic, 2020.
एमएलए (8वां संस्करण) प्रशस्ति पत्रBeer, Julie, और Michelle Harris. Pet Records: The Weirdest, Cutest, Biggest, Coolest, Tiniest, and Smartest Pets on the Planet. National Geographic, 2020.
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