Unesco Thesaurus :  A structured list of descriptors for indexing and retrieving literature in the field of education, science, social and human science, culture, communication and information, 

 - France :  as author,   1995. 
 - xxxix, 705p.: 
<br/><br/><label>ISBN: </label>92 3 003100 3 
<br/><br/><label>Dewey Class. No.: </label>R 025.33   / UNI N95U