Political Science :  An Introduction 
/ by Michael G. Roskin [et...al] 
 - 5th ed. 
 - New Jersey:  Prentice hall,   1994. 
 - xiv, 402p. ; 25cm. 
<br/><br/><label>ISBN: </label>0520036905 
<br/><br/><label>Dewey Class. No.: </label>327.17  / ROS/P