000			00283nam a2200121Ia 4500
008			231011s9999||||xx |||||||||||||| ||und||
041			_aeng
100			_aVerma, B.P
245		0	_aRock mechanics for engineers
250			_a3rd ed.
260			_bKhanna Publishers _c2015
942			_cBK
999			_c23760 _d23760