Immroth, John Phillip. <br/><br/>
Immroth's guide to the Library of Congress Classification / 
John Phillip Immroth and .Lois Mai Chan. 
 - 3rd ed. 
 - Coloradon :  Libraries Unlimited inc,  1980. 
 - 402 pages :  illustrations. 
<br/><br/>Includes index. 
<br/><br/><label>ISBN: </label>0872872246 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Classification.
<br/><br/><label>LC Class. No.: </label>Z 696.U415   / IMM 1980.