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Ru| Author | |
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| Description |
Zemyatchensky, P.A.The absorption properties of Russian clays / [Op.] P.A.Zemyatchensky.- Petrograd: [B.I., 1916-1919].- (Materials for studying the natural productive forces of Russia).1. Territory (collection).Electronic copy source: PBOriginal storage: St. Petersburg State University
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| Publisher | [б. и. |