00421    a2200157   4500082001300000100001500013245003700028250001200065260005000077300002100127650003700148650003400185650001200219700001500231700001700246  a540bBAH  aBahl, B.S.  aNumerical problems in chemistry   a6th ed.  aNew DelhibS. Chand & Company Ltdc1961g1990  a[vi],262p.c17cm  aNatural sciences and mathematics  aChemistry and allied sciences  aPhysics  aBahl, Arun  aSharma, G.D.