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1كتاب
المؤلفون: Pirke, Klaus.
مصطلحات موضوعية: Zeche Hannover -- History., Zeche Hannibal -- History., Zeche Königsgrube -- History., Fried. Krupp AG -- History., Mineral industries -- Germany -- Bochum -- History., Mineral industries -- Germany -- Herne (Arnsberg) -- History., Coal mines and mining -- Germany -- Hannover -- History.