TY  - BOOK
AU  - Rao Karanam, U. M and Misra, B
TI  - Principles of rock drilling
SN  - 81-204-1275-3
U1  - 622.338 
PY  - 1998///
CY  - New Delhi
PB  - Oxford & IBH Publishing Co. Pvt Ltd
KW  - MCE
ER  -