Burnham Peter...(et <br/><br/>
Research methods in politics 

 - 2nd ed 
 - New York  Palgrave Macmillan  2008 
 - xii,370p.;23cm 
<br/><br/><label>ISBN: </label>9780230019850 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Political science - Research methodology