Dittmann, Helena <br/><br/>Learn library of congress classification/ Helena Dittmann and Jane Hardy.--   --  DocMatriz Pty Ltd.,  2000. <br/>164 p.;  ill.  30 cm. <br/><br/> Includes bibliographical references and index. <br/><br/><label>ISBN: </label>9748279693 <br/><br/><label>Subjects--Topical Terms: </label><br/>Classification, Library of Congress.<br/><br/><label>Dewey Class. No.: </label>Res 025.433 D638 2000