| GMD | Text |
| Classification | 612.85 C286 |
| Publisher | East Sussex, England, Wayland Pub., c1981 |
| Subject | Ear -- Juvenile literature.Hearing -- Juvenile literature. |
| Series | Young scientist. |
| Description | 32 p. : col. ill. ; 24 cm. |
| ISBN | 9780853408673 |
| Additional ISBN | 085340867X |