00361nam a2200145Ia 4500001000500000005001700005008004100022020001500063082001700078100002000095245004500115250001200160260001800172650002500190357020261006003721.0120911s9999    xx            000 0 und d  a0878354786  a005.7565 WRA  aWray, Robert A.  aDbase plus programming / Robert A. Wray.  a2nd ed.  aBoyd & Fraser  aData base management