Universal decimal classification   69 Building materials, construction, trades. English ed. 

 -  1952 
<br/><br/><label>Standard No.: </label>6,360 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/>LIBRARY SCIENCE
<br/><br/><label>Dewey Class. No.: </label>2:51M96, qJ8-;4 (2D)