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Terms for subject United Nations containing Preservation of the | all forms | exact matches only | in specified order only
| English | German |
| International Day for the Preservation of the Ozone Layer | Internationaler Tag für den Schutz der Ozonschicht |
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| English | German |
| International Day for the Preservation of the Ozone Layer | Internationaler Tag für den Schutz der Ozonschicht |