Study of reference material  

 - 3rd ed. 
 - London:   The Library Association,  1963 
 - 51p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Reference material
<br/><br/><label>Subjects--Index Terms: </label>Bibliography 
<br/><br/><label>Universal Decimal Class. No.: </label>D 03  / K3