| GMD | Text |
| Classification | F HUG |
| Publisher | Oxford, Oxford University Press, 2004 |
| Subject | Prisoners -- Children's fiction.Happiness -- Children's fiction.Birdcages -- Children's fiction.Birdsongs -- Children's fiction. |
| Description | 16 p. ; 17 x 20 cm. |
| ISBN | 9780198455202 |