00259nam a2200097Ia 4500100002300000654001300023245006600036260003000102082001700132546001200149  aSocha/J./ Hall/ D   aComputer  aP.C. World  Dos  6.2. : Command  reference  & Problem  Solver  bGalgotiaaNew Delhic1994  a005.13 'DOS'  aENGLISH