Cowley, J. D.  1897-1944 <br/><br/>
The use of reference material :  an introductory manual for librarianship students and assistants 

 - 158 p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>obra de referencia<br/>uso
<br/><br/><label>Universal Decimal Class. No.: </label>028.7  / C875u