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Ecological and Sanitary Problems of Kazan Province Industrial Development in the 19th and Early 20th Centuries | 692 |
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Ecological and Sanitary Problems of Kazan Province Industrial Development in the 19th and Early 20th Centuries | 27 | 22 | 22 | 39 | 47 | 23 | 15 |
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7_1__p188_194.pdf | 110 |
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Russia | 185 |
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Kazan | 185 |