Markus Gregory B <br/><br/>
Analysing panel data 

 - London  Sage Pub.          1979 
 - 72p.  cm. 
<br/><br/><label>Standard No.: </label>32933 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Dewey Class. No.: </label>B28, L93