000			00351nam a2200145Ia 4500
008			211201s2018 xx 000 0 eng d
020			_a8184120419
082			_a658.45
100			_aCHATURVEDI, D.D.
245		0	_aEnviromental Science
260			_bSCHOLAR TECH _aNew Delhi _c2018
300			_aXIV,7.40
650			_aManagement
942			_2ddc _cBBN _020
999			_c430 _d430