The theory and practice of international relations / 
edited by William Clinton Olson. 
 - 8th ed. 
 - Englewood Cliffs, N.J. :  Prentice Hall,  1991. 
 - x, 406 p. ;  24 cm. 
<br/><br/>Includes bibliographical references. 
<br/><br/>Change and stability in the international system--Diplomacy : old calling, new challenges. 
<br/><br/><label>ISBN: </label>0139131612 
<br/><br/><label>Subjects--Topical Terms: </label><br/>International relations.