00264nam a2200097Ia 4500008004100000082001600041100002100057245004000078260003900118300000900157140113s9999    xx            000 0 und d  a681.14   N3  a"Simoson, Alan."  aUnderstanding d Base IV 1.5 for DOS  a1993bBPB PublicaitonscNew  Delhi  a1002