Baltagi, Badi H. <br/><br/>
Econometric analysis of panel data 
<label>/ by </label> Baltagi, Badi H. 
 - 3rd ed. 
 - Sussex  John Wiley  & Sons Ltd.  2005 
 - xii, 302p.  24 cm. 
<br/><br/><label>ISBN: </label>0470014563