000			00364nam a22001457a 4500
020			_a9788173814044
082			_a540.2 _bSAN/E
100			_aSantra, S.C.
245			_aEnvironmental science / _cS.C. Santra
250			_a2nd ed
260			_c2011. _bNew central book Agency, _aNew Delhi :
300			_axxix,1244p.: _bill.; pb
650			_aChemistry
942			_cBK
999			_c22438 _d22438