00302pab a2200121 454500008004000000100001500040245006200055260000900117300001000126362000900136650002100145773001400166180718b1986   xxu||||| |||| 00| 0 eng d  aSuma, R.S.  aPricing in the commercial energy sectorbThe case of coal  c1986  a49-50  aDec.  aEnergy Resources  aAbhipraya