Volience and its causes 

 - paris  Unceco         1981 
 - Uncesco Insight; 4 .
<br/><br/><label>Standard No.: </label>128,348 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/>POLITICAL SCIENCE
<br/><br/><label>Dewey Class. No.: </label>W81, M1