Nelson, L.F. <br/><br/>
Commercial correspondence and commercial english 

 - 6th ed 
 - Pitman Publishing, Nairobi  1975 
 - viii,120 
<br/><br/><label>ISBN: </label>0-273-40324-9 
<br/><br/><label>Dewey Class. No.: </label>651.7 Nel