Dittman, Helena <br/><br/>
Learn Library of Congress classification 
Helena Dittman 
 - Thailand :   Book Promotion & Service Co., Ltd.,  c2000. 
 - 161 pages ;   29 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>974-8279-69-3. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>1. Classification, Library of Congress.
<br/><br/><label>Dewey Class. No.: </label>Res. 025.433 D617l 2000