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Ecological and Sanitary Problems of Kazan Province Industrial Development in the 19th and Early 20th Centuries | 463 |
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Ecological and Sanitary Problems of Kazan Province Industrial Development in the 19th and Early 20th Centuries | 14 | 24 | 18 | 17 | 13 | 21 | 9 |
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7_1__p188_194.pdf | 101 |
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Russia | 185 |
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Kazan | 185 |