000 00347nam a2200145Ia 4500
082 _a577.14
_bAGA
100 _aAgarwal , R.K.
245 _aEnvironmental studies
260 _aMeerut
_bKrishna Prakashan Media (p)
300 _axi, 264p
650 _aApplied Sc.
650 _aChemistry
650 _aEnvironmental Science
700 _aSangal,V.K.
999 _c4995
_d4995