Bonner, H. (2007). When fish got feet, sharks got teeth, and bugs began to swarm: A cartoon prehistory of life long before dinosaurs. National Geographic.
Cita Chicago Style (17a ed.)Bonner, Hannah. When Fish Got Feet, Sharks Got Teeth, and Bugs Began to Swarm: A Cartoon Prehistory of Life Long Before Dinosaurs. Washington, D.C.: National Geographic, 2007.
Cita MLA (8a ed.)Bonner, Hannah. When Fish Got Feet, Sharks Got Teeth, and Bugs Began to Swarm: A Cartoon Prehistory of Life Long Before Dinosaurs. National Geographic, 2007.
Precaución: Estas citas no son 100% exactas.