000 00326nam a2200133Ia 4500
008 221117b |||||||| |||| 00| 0 eng d
040 _aBGL
_cBGL
082 _a333.714AST:E
100 _aAsthana D.K.
245 0 _aEnvironment: Problems & Solutions
260 _aNew Delhi
_bS.Chand & Company
300 _a434p
942 _cGB
999 _c29849
_d29849