Mortimer, Mary. <br/><br/>
Learn Dewey Decimal Classification (Edition 21) / 
Mary Mortimer 
 - Campbell :  Book Promotion & Service,  1998 
 - 130 p. 
 - Library Education Series .
<br/><br/><label>ISBN: </label>9748279618 /  395 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Classification, Dewey decimal--prlblems, exercises.<br/>Cataloguing--Problems, exercises.
<br/><br/><label>LC Class. No.: </label>A696.D7  / M888 L4 1998