TY  - BOOK
ED  - Indian Bureau of Mines.
TI  - Memoirs on coal exploration, second five year plan, 1963
AV  - TN809.I4 A53
U1  - 622.182 
PY  - 1966///]
CY  - Nagpur
KW  - Coal
KW  - India
KW  - Borings
N1  - Bibliography: p. 581-582
ER  -