00385nam a22001457a 4500 624.15132 VER L-16 p-64 Verma, B.P 40192 Rock Mechanics for Engineers 2nd Delhi Romesh Chander Khanna 1989 x, 213. p ill. 21cm 0 0 0 624_151320000000000_VER MCE 379 ddc BK 546451 546451 0 0 ddc 0 0 MCE MCE 2014-06-12 1 624.15132 VER MCE-24715 2017-04-20 2017-02-23 2021-03-14 BK