Short description: In Russian. Lokhansky, Ivan Ivanovich. What a worker should know about coking coal. Moscow: State Engineering Publishing House, 1930 (Leningrad: type. Red Printer ). Chto dolzhen znat' rabochiy o koksovanii ugley. In Russian /What a worker should know about coking coal. 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. SKU9213808