Supplements 

 - New York  United Nations U S A       1977 
 - vii,114p.  cm. 
 -  Supplement 18 .
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Subjects--Topical Terms: </label><br/>History
<br/><br/><label>Dewey Class. No.: </label>V1n45,933:8.N77, L7,18