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Terms for subject Ecology containing the Sound | all forms | exact matches only | in specified order only
| English | Russian |
| Agreement Concerning the Protection of the Sound from Pollution | Соглашение об охране Зунда от загрязнения (1974) |
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| English | Russian |
| Agreement Concerning the Protection of the Sound from Pollution | Соглашение об охране Зунда от загрязнения (1974) |