Guffey, Mary Ellen. <br/><br/>
Essentials of business communication / 
Mary Ellen Guffey, Bertha Du-Babcock. 
 - [Asian ed.], 2nd ed. 
 - Singapore :  Cengage Learning Asia Pte Ltd,  2010. 
 - xix, 556 p. :  col. ill. ;  28 cm. +  1 CD-ROM (4 3/4 in.) 
<br/><br/> Prev. ed.: 2008. 
<br/><br/>Includes bibliographical references (p. 545-549) and index. 
<br/><br/><label>ISBN: </label>9789814319171 (pbk.) 9814319171 (pbk.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Business communication<br/>Business writing<br/>English language--Business English