ROSKIN MICHAEL G . <br/><br/>
POLITICAL SCIENCE  AN INTRODUCTION /  [Book :] 
MICHAEL G . ROSKIN, LYCOMING COLLEGE. 
 - 5 ed. 
 -  Prentice - Hall international, inc.,  1994. 
 - 402.P. ;  25 cm. 
<br/><br/><label>ISBN: </label>0130980218 
<br/><br/><label>Dewey Class. No.: </label>325.21