Business communication :   process and Product / 
Guffey , Mary Ellen ; Kathleen Rhodes ; Patricia Rogin  
 - 3rd ed 
 - Toronto:  Nelson Education .  2010. 
 - xvi,443 p,: 
<br/><br/><label>ISBN: </label>9780176500467 
<br/><br/><label>LC Class. No.: </label>HF5718.3  / .G83  2010