Empirical political analysis :  research methods in political science / 
Jarol B. Manheim... 
 - 6. ed. 
 - New York :  Longman,  2006 
 - xv, 430 s. 
<br/><br/><label>ISBN: </label>0321298608 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Statsvetenskap--forskning<br/>Political science--Research
<br/><br/><label>Dewey Class. No.: </label>320.072