TY  - GEN
AU  - Singh, R.D.
TI  - Principles and practices of modern coal mining
SN  - 9788122409741 (pbk.)
U1  - 622.334 
PY  - 2018///
CY  - New Delhi
PB  - New Age International Publishers
KW  - Mining Engineering.
N1  - Includes references and index.
ER  -