Pick, Otto. <br/><br/>
Collective security / 
Otto Pick and Julian Critchley. 
 - London :  Macmillan,  1974. 
 - 123 p. ; 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>0333173449 : 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Security, International.
<br/><br/><label>Dewey Class. No.: </label>327.116  / Co