Della Porta/Keating <br/><br/>
Approaches and Methodologies in the Social Sciences  1st ed 

 -  Cambridge University Press  2012 
<br/><br/><label>ISBN: </label>9780511801938 
<br/><br/><label>Source: </label>EBOOK 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Political Science