Short description: In Russian. Polkin, Stepan Ivanovich. Flotation of rare metal ores and tin. Moscow: Gosgortekhizdat, 1960. Flotatsiya rud redkikh metallov i olova. In Russian /Flotation of rare metal ores and tin. The image is provided for reference only. It may reflect condition of one of the available copies or only help in identifying the edition. Please feel free to contact us for a detailed description of the copies available. SKU6468876