Topic 5, Utilization of coal-preparation waste as a component or a basic raw material in the production of building materials : use of coal waste in the Upper Silesian coalfield of the Polish People's Republic : summary / transmitted by the Government of Poland.
Topic 5, Utilization of coal-preparation waste as a component or a basic raw material in the production of building materials : use of coal waste in the Upper Silesian coalfield of the Polish People's Republic : summary / transmitted by the Government of Poland.
Utilization of coal-preparation waste as a component or a basic raw material in the production of building materials : summary. Use of coal waste in the Upper Silesian coalfield of the Polish People's Republic : summary.