Dinosaur's day /
written by Ruth Thomson.
- London : Dorling Kindersley, 2009.
- 32 p. : col. ill. ; 23 cm.
- Dorling Kindersley readers. 1 : beginning to read .
Originally published: 2000.
A gentle Triceratops forgets to stay with the herd and has to use his sharp horns to fight a Tyrannosaurus.