00277nam a2200109 a 450000500170000008200160001710000210003324500330005426000360008730000230012363000210014620251202164222.0  a005.74bJAC  aJacobs , Barry E  aApplied database logic  :  I  aNew JerseybPrentice Hallc1985  a334 p.c24 cm.bHB  acomputer Science