| GMD | Text |
| Classification | 823.914 DOR |
| Publisher | New York, Macmillan Children's Books, c2008. |
| Subject | Identity (Philosophical concept) -- Fiction.Hadrosauridae -- Fiction.Tyrannosaurus rex -- Fiction. |
| Description | col ill ; 31 cm |
| ISBN | 9780230015500 |
| Additional ISBN | 9780330532532 |