000 00314nam a2200133Ia 4500
082 _a577.14
_bSHA
100 _aSharma, J.P.
245 _aEnvironmental Studies
250 _a3rd
260 _aNew Delhi
_bUniversity Science Press
_c2010
300 _a221p.
650 _aApplied Sc.
650 _aEnvironmental Science
999 _c4999
_d4999