Finding the source :  a thesaurus-index to the reference collection / 
compiled by Benjamin F. Shearer and Barbara Smith Shearer 
 - Westport, Conn. :  Greenwood Press,  1981 
 - 545 p. ;  24 cm. 
<br/><br/><label>ISBN: </label>031322563X 
<br/><br/><label>LCCN: </label>81-006800 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Reference services (Libraries)<br/>Information retrieval<br/>Thesauri<br/>Indexes