MASTERING business communication/ 
Woolcott,L.A & W.R.Unwin. 
 - London,:  palgrave macmillan,  c1983. 
 - ix,309 p.:  ill.;  21 cm. 
<br/><br/><label>ISBN: </label>9780333335291 
<br/><br/><label>LC Class. No.: </label>HD30.3  / .W66 1983