00456    a2200181   4500020001500000082001800015100001700033245002300050260004000073300002300113650003200136700001600168700001900184700001700203700001800220700002000238700001600258  a0133014339  a658.4032bANA  aMaclean, Roy  aAnalysing systems   aNew YorkbPrentice-Hallc1994g1994  axiii, 294p.c23cm.  aSystems theory and analysis  aKatz, Simon  aStepney, Susan  aSmith, Simon  aTordoff, Nick  aGradwell, David  aHoverd, Tim