00272nam a2200133Ia 4500020000900000082000900009100001800018245006600036250000600102260000900108300000900117500000600126650000600132  aNULL  aNULL  aKapoor, V. K. 0aIntroduction to computer data processing and systems analysis  a-  a-b-  aNULL  a0  a-