UNESCO thesaurus: a structured list of descriptors for indexing and retrieving literature in the fields of education, science, social and human science culture, communication and information 

 - Maxeville  UNESCO  1995 
 - 705p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Subject headings<br/>Thesauri
<br/><br/><label>Dewey Class. No.: </label>P9951 Un2