000 00413 a2200157 4500
020 _a8122401902
082 _a540
_bDEA
090 _c19982
_d30905
100 _aDe, Anil Kumar
245 _aEnvironmental chemistry
260 _aNew Delhi
_bWiley Eastern Limited
_c1987
_g1989
300 _axi,340p.
_c21cm
650 _aNATURAL SCIENCES AND MATHEMATICS
650 _aCHEMISTRY AND ALLIED SCIENCES
942 _cL
999 _c47653
_d47653