TY  - BOOK
AU  - Singh R.D
TI  - Principles and Practices of Modern Coal Mining
SN  - 9788122409741
AV  - TN275.A1 .S56
PY  - 2013///
CY  - New Delhi
PB  - New age International Publishers
KW  - Coal Mines
KW  - Coal Mining
ER  -