Cotton, David Robbins, Sue <br/><br/>
Business class 

 - 11th impr., 12th impr. 
 - Harlow:  Longman,  1993. 
 - 185 s.   28 cm.  7JA-CotD-Bus 
<br/><br/><label>ISBN: </label>175563373 9780175563371