00343nam a2200133Ia 4500008004100000020001500041041001200056082001600068100001400084245006000098260002600158300000900184650001600193221030s9999    xx            000 0 und d  a8187105224  aEnglish  a105.23bNor  aP. Norton 0aPeter Norton`s Complete Guide To DOS 6.22cby P. Norton  bTechmediaaPunec1997  a1150  aBE Computer