| Format: | When he has a dream about a future Earth devastated by pollution, Walter begins to understand the importance of taking care of the environment. |
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| Copyright: | 2011 |
| ISBN: | 9780547520261 |
| LCCN: | 2011378813 |
| Publisher: | Boston : Sandpiper, |
| Physical Details: | 1 v. (unpaged) : col. ill. ; 29 cm. |
| Record No.: | 336332 |
| No copies available. |