CONCLUSIONS ON THE PROJECT MATERIALS AND RECOMMENDATIONS ON THE DEVELOPMENT OF COAL MINING IN THE KORBA COALFIELD
Conclusions on the Project Materials and Recommendations on the Development of Coal Mining in the Korba Coalfield - New Delhi, 1957 - 151p
Production Economics
338.476626 / CON
Conclusions on the Project Materials and Recommendations on the Development of Coal Mining in the Korba Coalfield - New Delhi, 1957 - 151p
Production Economics
338.476626 / CON