000			00336nam a2200133Ia 4500
005			20260205051842.0
008			260111s9999||||xx |||||||||||||| ||und||
082			_a622.4 D470E
100			_aDhar, B. B.
245		0	_aEnvironment management of mining operation
260			_aNew Delhi _bAshish _c1990
300			_a390p.
942			_cBK
999			_c103836 _d103836