000 00378nam a22001337a 4500
020 _a81-204-1275-3
082 _a622.338
_bKAR
_cDonation
100 _aRao Karanam, U. M and Misra, B
245 _aPrinciples of rock drilling
_cU.M. Rao Karanam & B. Misra
260 _aNew Delhi
_bOxford & IBH Publishing Co. Pvt Ltd
_c1998
300 _avii. 265.p:
650 _aMCE
942 _cBK
999 _c6317
_d6317