Box-Steffensmeier, Janet M. <br/><br/>
The Oxford Handbook of Political Methodology 
Box-Steffensmeier, Janet M. 
 - New York  Oxford University Press  2008 
 - 880 
<br/><br/><label>ISBN: </label>9780199585564 
<br/><br/><label>Source: </label>Textbook