000 00284nam a2200121Ia 4500
008 220201s1989 xx 000 0 eng d
082 _a005.74
_bALA
100 _aAlan, Simpson
245 0 _aUnderstanding D Base iv
260 _bBPB Publication
_c1989
300 _a880
942 _2ddc
999 _c84072
_d84072