Wooldridge, Jeffrey M. <br/><br/>
Introductory econometrics: a modern approach / 
Jeffrey M. Wooldridge 
 - 4th edition. 
 - Noida :  Cengage Learning,  2008. 
 - xx, 865 pages :  illustrations ;  25 cm. 
<br/><br/><label>ISBN: </label>9780324788907 (pbk.) 
<br/><br/><label>Dewey Class. No.: </label>658.4033 WOO