| GMD | Text |
| Classification | 552 CRE |
| Publisher | Berkhamsted, Hertfordshire, Castle Street Press, c2011 |
| Subject | Rocks.Rocks -- Juvenile literature. |
| Topic | Grade 2-3 Reading (420L-820L) |
| Series | First Encyclopedia |
| Description | 30 p. : col. ill. ; 29 cm. |
| ISBN | 9781780652047 |
| Suitable | From 5 To 7 |