00590nam a2200205Ia 4500003000400000005001700004008004100021020001400062040001800076041000800094082002100102100001600123245006500139250001200204260004300216300002900259650002600288650003400314650003600348OSt20260105103518.0210716s1998    xx            000 0 und d  a760050163  cAIMIT LIBRARY  aeng  a006.37 21bZAKD  aZak, Diane.  aProgramming with microsoft visual basic 5.0 /cBy Diane Zak.  a1st ed.  aNew York :bCourse Technology ,c1998.  axvi;815p. ;bPBc27.8 cm  aDesigning application  aUsing variables and constants  aDialog boxes and error trapping