00349nam a2200121 a 450000500170000002000150001708200210003210000210005324500620007426000410013630000260017763000240020320251203091136.0  a0697004511  a001.6424068bLIT  aLitton, Gerry M.  aIntroduction to Database managementba practical approach  aDubuquebWm.C.Brown Publishersc1987  axx,532 p.b23 cm.cHB  aDatabase management