Johnson, Janet Buttolph, ; Joslyn, Richard; Reynolds, H. T.; Mycoff, Jason D <br/><br/>
Political science research methods 

 - 7TH ED. 
 - Usa  Sage Publishers  2012 
<br/><br/><label>ISBN: </label>9781608716890 
<br/><br/><label>Dewey Class. No.: </label>320.072 JOH/P