Lehman Dale <br/><br/>
Managerial economics 
Lehman Dale; Png Ivan 
 - 3 
 - USA  USA, Blackwell  2007 
 - xviii,477 
<br/><br/><label>ISBN: </label>978-1-4051-6047-6 
<br/><br/><label>Source: </label>Textbook