00327nam a2200121 a 450000500170000002000150001708200160003210000240004824500430007226000380011530000250015363000270017820251202164247.0  a0827323387  a658.45bCOM  aComstock, Thomas W.  aComminicating in business and industry  aNew YorkbDelmar Publishersc1985  avi,188p.b21 cm.cPB  aBusiness communication