000 00272nam a2200121Ia 4500
008 191031s9999 xx 000 0 und d
100 _aSimpson (Alan)
245 0 _aUnderstanding dbase IV 1.1 Ed 2
260 _bBPS Pub
260 _c1991
365 _b90
942 _cBK
999 _c216186
_d216186