00317nam a2200121 a 450000500170000002000150001708200230003210000200005524500430007526000340011830000240015270000190017620251202164248.0  a0631140344  a658.40355,bD, Bar  aBarron, Michael  aManagers guide to Business forecasting  aOxfordbBasil Blackwellc1985  aviii, 200p.c23 cm.  aTargett, David