Arnold, C., & Hogan, J. (2012). A warmer world: From polar bears to butterflies, how climate change affects wildlife. Charlesbridge.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रArnold, Caroline, और Jamie Hogan. A Warmer World: From Polar Bears to Butterflies, How Climate Change Affects Wildlife. Watertown, MA: Charlesbridge, 2012.
एमएलए (8वां संस्करण) प्रशस्ति पत्रArnold, Caroline, और Jamie Hogan. A Warmer World: From Polar Bears to Butterflies, How Climate Change Affects Wildlife. Charlesbridge, 2012.
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