Chan, Lois Mai <br/><br/>
Immroth's Guide to the Library of Congress classification / 
by Lois Mai Chan 
 - 4th ed. 
 - Englewood, Colo. :  Libraries Unlimited,  1990 
 - 436 p. ;  24 cm. 
<br/><br/>Includes bibliographical references and index 
<br/><br/><label>ISBN: </label>0872877639  RM104.13 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Classification, Library of Congress