Diplomatic investigations :  essays in the theory of international politics / 
edited by Herbert Butterfield and Martin Wight 
 - London :  George Allen & Unwin,  1966 
 - 5-227 p.;  22 cm. 
<br/><br/> Contributors: Hedley Bull, Herbert Butterfield, Michael Howard, G.F. Hudson, Donald Mackinnon, Martin Wight 
<br/><br/>Bibliographical footnotes 
<br/><br/><label>ISBN: </label>0043270069 
<br/><br/><label>Subjects--Topical Terms: </label><br/>International relations