| GMD | Text |
| Language | Eng |
| Classification | 333.7 K25 |
| Publisher | Ladybird, Loughborough, England, c1976 |
| Subject | Human beings -- Influence on nature -- Juvenile literature.Ecology.Environment. |
| Description | 50 p. : ill. ; 18 cm. |
| ISBN | 0721404421 |
| Additional ISBN | 978721404424 |