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Dimetrodon

Tamara Green

出版	Gareth Stevens Pub., 1996
主題	Juvenile Nonfiction / Animals / Dinosaurs & Prehistoric CreaturesNature / Animals / General
ISBN	08368158909780836815894
URL	http://books.google.com.hk/books?id=bowQgg7GrMIC&hl=&source=gbs_api

註釋

Describes the physical characteristics and habits of this prehistoric sail-backed reptile.