Mary Ellen Guffey,  2011. <br/><br/>
Essentials of Business Communication / 
Mary Ellen Guffey. 
 - Second Edition. 
 - np. 
<br/><br/><label>ISBN: </label>9789814352666 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Business--Singapore--2011--newsprint.