Roy, Michael K.  <br/><br/>
Research methods in political science :   an introduction using microCase® 

 - 7th ed. 
 - USA :  Wadsworth Cengage Learning,  2009. 
 - xviii,312 p. 
<br/><br/><label>ISBN: </label>978-04-9550283-8 
<br/><br/><label>Source: </label>Textbook 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Political Science<br/>Research methodology