Damodar Gujarati <br/><br/>
Essentials of econometrics / 

 - 3rd ed.  
 - Boston, [MA] :   McGraw-Hill/Irwin,    c2006. 
 - 553 p 
<br/><br/><label>ISBN: </label>0072970928 
<br/><br/><label>LC Class. No.: </label>HB 139 .G85/