| GMD | Text |
| Classification | 460 PEL |
| Publisher | Boston, Houghton Mifflin Co., c2005 |
| Subject | Erosion -- Juvenile literature.Weathering -- Juvenile literature.Spanish language -- Readers. |
| Topic | Spanish |
| Description | 8 p. : col. ill. ; 21 cm. |
| ISBN | 9780618476459 |