CHAN LOIS MAI <br/><br/>
A Guide to the Library of Congress Classification 

 - 5th ed. 
 - Colorado.  Libraries Unlimited  1990 
 - 551p. 
<br/><br/><label>ISBN: </label>1-56308-500-3 
<br/><br/><label>Subjects--Topical Terms: </label><br/>class number<br/>notation
<br/><br/><label>Dewey Class. No.: </label>25.433