00496nam a2200145Ia 45000010006000000050017000060080041000230200015000640820015000791000024000942450087001182600026002053000040002316500079002711345520261006004521.0120911s9999    xx            000 0 und d  a0176415033  a658.45 GUF  aGuffey, Mary Ellen.  aEssentials of business communication / Mary Ellen Guffey.- 5th ed Canadian edition  aCanada : Nelson, 2007  axix, 520 p: ill(some col.) ; 28 cm.  aBusiness writing English language--Business English Business communication