00256nam a2200097Ia 4500080001800000100002600018245004800044260003700092300001100129583001800140  a19.01.06 P451  aPerkinson, Richard C.  aData analysis : the key to data base design  bNorth-HollandaAmsterdamNLc1984  a285 p.  c11/9/05kJOYD