Wooldridge, Jeffrey M <br/><br/>
Introductory Econometrics :  a modern approach / 
Jeffrey M. Wooldridge. 
 - \\  3rd ed.; 5th ed. 
 - Mason, OH :  South-Western Cengage Learning,  c2013. 
 - xxv, 881 p. : 
<br/><br/><label>ISBN: </label>9781111534394;111153439x;9780324323481 
<br/><br/><label>LC Class. No.: </label>HB 139