TY  - BOOK
AU  - Vorobjev,Boris M.
AU  - Deshmukh,Ramrao T.
TI  - Advanced coal mining
U1  - 622.33 
PY  - 0000///Kusum Deshmukh,
PY  - 1964///
CY  - Dhanbad
KW  - Coal mines and mining
KW  - Energy industries
KW  - India
KW  - Mines and mineral sources
N1  - Incldues index; Library has 2 cops. of vol. 1, 2
ER  -