Baltagi, Badi H. <br/><br/>
Econometric analysis of panel data / 

 - 4th 
 - New Jersey:  John Wiley,  2008 
 - 
<br/><br/><label>ISBN: </label>9780470518861 
<br/><br/><label>Dewey Class. No.: </label>330.183  / B197.EA