Williams, Helen, <br/><br/>
Statistics for political science and international relations research using IBM SPSS statistics / 
Helen Williams. 
 - vii, 379 pages :  illustrations ;  24 cm. 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>9781473902718  RM121.47 (PTSL) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Political science--Statistical methods.<br/>International relations--Statistical methods. <br/>Political science--Data processing.<br/>International relations--Data processing.