   1997 - When Dinosaurs Ruled the Earth (Paperback) ISBN-13: 9780874068719 ISBN-10: 0874068711 Genre: Children's Books 1  1990 - When Dinosaurs Ruled the Earth [Really Reading, Level 1] (Paperback) ISBN-13: 9780874065602 ISBN-10: 0874065607 Genre: Children's Books 1  |
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