Kaplan, Morton A. <br/><br/>
System and process in international politics / 
Morton A. Kaplan. 
 - New York:  John Wiley & Sons,  1957. 
 - 283 p. :  ill. ;  21 cm. 
<br/><br/><label>LCCN: </label>5-713362 
<br/><br/><label>Subjects--Topical Terms: </label><br/>International relations