Political science :  An introduction / 
Michael G. Roskin, Robert L. Cord, James A. Medeiros, Walter S. Jones. 
 - 10th ed. 
 - New Jersey :  Pearson Education International,  2008. 
 - 427 p. :  ill. 
<br/><br/>Includes bibliogr. references and index. 
<br/><br/><label>ISBN: </label>0132365421 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Political science