Siddique, Abu Bakr <br/><br/>
DDC number building and number analysis :  a mathematical synopsis / 
Abu Bakr Siddique 
 - Dhaka :  Asiatic Press,  1972 
 - xiii, 66 p. :  22 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Library & information science--Classification systems<br/>Dewey Decimal Classification (DDC)--Number building 
<br/><br/><label>Dewey Class. No.: </label>020  / SID