00306pam a2200121 a 4500020000500000041000800005082001800013100002600031245005200057250001400109260003800123300002300161  c  aeng  a005.3682bDUN  aDuncan Ray ,eAuthor.  aAdvanced MS Dos Programming hTextual Documents  a2 nd ed .  aNew DelhibBPB Publicationsc2011  a669:bxiv;c23*18.