Search for: [Subject and Keywords = Fridrich Anton von Heynitz] OR [Subject and Keywords = Fridrich Wilhelm von Reden] OR [Subject and Keywords = Frederic II] OR [Subject and Keywords = economy of the Kingdom of Prussia] OR [Subject and Keywords = Fridrich Anton von Heynitz] OR [Subject and Keywords = Fridrich Wilhelm von Reden] OR [Subject and Keywords = Fryderyk II] OR [Subject and Keywords = gospodarka Królestwa Prus] OR [Title = Górnictwo i przemysł Górnego Śląska w dobie Fridricha Antona von Heynitza i Fridricha Wilhelma von Redena, współtwórców potęgi gospodarczej Prus \(1777\-1807\)] OR [Creator = Kowalczyk, Rafał Wiktor]