TY  - BOOK
AU  - Singh, R. D
TI  - Principles and practices of modern coal mining
SN  - 9788122409741
U1  - 622.33 SIN 
PY  - 2010///
CY  - New Delhi
PB  - New Age International ( P) Limited, Publishers
KW  - Coal mining
N1  - Includes index
ER  -