00422nam a2200157Ia 4500008004100000020000900041035000900050082002500059100006200084245003900146250000600185260004700191300000800238500000900246650000900255210723s9999||||xx |||||||||||||| ||und||  aNULL  a6824  a519BCHU / ACO / ARN  aChurchman, C. West/ Acoff, Russell L./ Arnoff, E. Leonard 0aIntroduction To Operation Research  a-  aNew YorkbJohn Wiley  Sons Asia pte. Ltd.  a645  a1555  a-NA-