International relations science 1919 
by Atul Chandra Roy 
 - 7th. 
 - Calcutta:  The world press private ltd,987. 
 - xiv, 648p:  45cm. 
<br/><br/><label>Subjects--Index Terms: </label>Political science International relations since 1919 
<br/><br/><label>Dewey Class. No.: </label>327.09041