Wooldridge, Jeffrey M. <br/><br/>
Econometric analysis of cross section and panel data / 

 - Cambridge:  MIT Press,  2002 
 - xxi, 752p. Bibl. Index. 
<br/><br/><label>ISBN: </label>0262232197 
<br/><br/><label>Dewey Class. No.: </label>330.015195  / W913.EA