Obergoffer P., d-r inzh. prof. Tehnicheskoe zhelezo: Stroenie i svojstva. In Russian/ Obergoffer P., o-r Ing. Prof.. Technical iron: structure and properties. In Russian, n/a - landofmagazines.com

TransliterationObergoffer P., d-r inzh. prof. Tehnicheskoe zhelezo: Stroenie i svojstva. In Russian

In EnglishObergoffer P., o-r Ing. Prof.. Technical iron: structure and properties. In Russian, n/a

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