Gujarati, Damodar N. <br/><br/>
Econometria basica 

 - 3ed 
 - Bogotá :  MCGHL,  1997. 
 - 823p 
<br/><br/>
<br/><br/><label>ISBN: </label>9586005852 
<br/><br/><label>Dewey Class. No.: </label>330.1