Polyakov K. Pechi i apparaty dlya polucheniya i ochistki sernistogo gaza./Polyakov K. Furnaces and apparatus for the production and purification of sulphur gas. In Russian (ask us if in doubt) - landofmagazines.com

TransliterationPolyakov K. Pechi i apparaty dlya polucheniya i ochistki sernistogo gaza.

In EnglishPolyakov K. Furnaces and apparatus for the production and purification of sulphur gas. In Russian (ask us if in doubt)

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