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Hans Magnus Enzensberger, Rotraut Susanne Berner, Carlos Fortea
Annoyed with his math teacher who assigns word problems and won't let him use a calculator, twelve-year-old Robert finds help from the number devil in his dreams.
| Publisher | Siruela |
|---|---|
| Pages | 260 |
| Format | pocket book |
| Search language | spanish |
| ISBN_10 | 8-415-93726-1 primary |
| ISBN_13 | 978-8-415-93726-5 primary |
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