00293    a2200121   4500082001600000100002000016245003300036260002700069300001600096650002100112650002100133700001700154  a004.21bSKI  aSkidmore, Steve  aIntroducing systems analysis  aDelhibBPBc1992g1992  a244p.c22cm  aComputer science  aSystems analysis  aWroe, Brenda