Political science : an introduction 
Roskin, Michael G. 
 - seventh edition. 
 -  Prentice Hall.  2000 
 - xvii, 398 pages. 
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<br/><br/><label>ISBN: </label>0-13-020872-8 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Political science.
<br/><br/><label>Dewey Class. No.: </label>320 P75 2000