Das, S.T. <br/><br/>
National security in perspective 
S.T. Das. 
 - New Delhi  Gian Publication  1987 
 - viii, 173p  22cm. 
<br/><br/><label>ISBN: </label>ISBN : 81-212-0102-0. 
<br/><br/><label>Dewey Class. No.: </label>355.03  / D18N