00278nam a2200109Ia 450000500170000000800410001708200150005810000170007324500400009026000300013030000080016020260224041023.0260224s9999||||xx |||||||||||||| ||und||  a005.74 PRA  aPratt, P.J.  4aThe concepts of database management  aThomson Wood Worthsc2008  a396