00307nam a2200133Ia 4500008004100000100001700041245003300058250001200091260002700103300000800130650001300138942000700151999001500158190216s9999||||xx |||||||||||||| ||und||  aAlan Simpson 0aUnderstanding Dbase Iii Plus  a1st Ed.  bBpb Publicationsc1993  a414  aComputer  cBK  c8577d8577