Westby, Barbara Marietta and Frick, Bertha Margaret <br/><br/>
Sears list of subject headings 

 - 9th ed. 
 - New York  ; The H. W. Wilson  , 1965 
 - 641p. 
<br/><br/><label>ISBN: </label> 72.60 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Library Science<br/>Sublect Heading List
<br/><br/><label>Dewey Class. No.: </label>025.47  / WES