Bonner, H. (2003). When bugs were big, plants were strange, and tetrapods stalked the earth: A cartoon prehistory of life before dinosaurs. National Geographic.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रBonner, Hannah. When Bugs Were Big, Plants Were Strange, and Tetrapods Stalked the Earth: A Cartoon Prehistory of Life Before Dinosaurs. Washington, D.C.: National Geographic, 2003.
एमएलए (8वां संस्करण) प्रशस्ति पत्रBonner, Hannah. When Bugs Were Big, Plants Were Strange, and Tetrapods Stalked the Earth: A Cartoon Prehistory of Life Before Dinosaurs. National Geographic, 2003.
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