000			00330nam a2200133Ia 4500
005			20250612122258.0
008			250601s1997 xx 000 0 eng d
020			_a8170208378
100			_aDr amit krishan de
245		0	_aSustainble and environmnent
260			_aNew Delhi _bCommnwealth _c1997
300			_a324
942			_2ddc _cBK
999			_c2730 _d2730