00323nam a2200109Ia 4500001000500000005001700005008004100022082001500063245005500078260005300133650002700186802520261006004052.0120911s9999    xx            000 0 und d  a658.45 HAR  aHarvard business review on effective communication  aBoston, MA : Havard Business School Press,c1999.  aBusiness communication