000			00331nam a2200133Ia 4500
008			211101s2015 xx 000 0 eng d
020			_a9789350780688
082			_a581.5 S 233 E
100			_aSharma P.D.
245		0	_aEcology and Environment
260			_bRastogi Publications Meerut _c 2015-16
300			_a732
942			_2ddc _cBK
999			_c538 _d538