000			00387nam a2200169Ia 4500
020			_a8171338143
082			_a577.14 _bSHA
100			_aSharma, P.D.
245			_aEcology and environment
250			_a7th
260			_aMeerut _bRastogi publications _c2005
300			_axv,660p.
650			_aApplied Sc.
650			_aChemistry
650			_aEnvironmental Science
044			_aIndia
999			_c4424 _d4424