Study on defensive security concepts and policies. 

 - New York :  United Nations,  1993. 
 - ix, 64 p. ; 
<br/><br/><label>ISBN: </label>9211421977 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Security, International.
<br/><br/><label>Dewey Class. No.: </label>327.174  / St