00310    a2200109   4500020001500000082001600015100002600031245005800057260003700115300001900152650002900171  a002399665X  a005.74bRIC  aRicardo, Catherine M.  aDatabase systems principles design and implementation  aNew DelhibMacmillanc1990g1990  axv,576p.c24cm  aData files and databases