Christ, John M. <br/><br/>
Concepts and subject headings: their relation of information retrieval in librar 

 - New Jersey  Scarecrow Press  1972 
 - xiv, 174p. 
<br/><br/>Includes bibliography 
<br/><br/><label>ISBN: </label>0-8108-0491-3 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Library science<br/>Social sciences<br/>Subject headings - Study and teaching<br/>Social sciences - Terminology
<br/><br/><label>Dewey Class. No.: </label>025.493 CHR-;