000 00301nam a2200121Ia 4500
008 161121s9999 xx 000 0 und d
100 _aSharma (H.S.) ; Khan (TI)
245 0 _aOzone Depletion and Environmental Impact
260 _cPointer Publishers
365 _b0
650 _aNIL
942 _cBK
999 _c106843
_d106843