00302pab a2200133 454500008004000000100002500040245002600065260000900091300001500100362000800115650001600123700001800139773001100157180718b1998   xxu||||| |||| 00| 0 eng d  aSeth, Keshab Chandra  aOzone layer depletion  c1998  ap.42,44,50  aJul  aEnvironment  aAlappat, B.J.  aYojana