Learn Dewey Decimal Classification 
Mary Mortimer 
 - Edition 21 
 - 130 pages  illustrations  29cm 
 - Library Education Series .
<br/><br/>Includes bibliographical references and index 
<br/><br/><label>ISBN: </label>9748279618 (paperback) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Classification, Dewey Decimal--Problems, exercises , etc