Sehgal, R L <br/><br/>
Number building in Dewey Decimal Classification, Universal Decimal Classification & Colon Classification / 
R L Sehgal. 
 - New Delhi :    Ess Ess Publications,  1993 
 - vii, 280, 266, 78 p.    22 cm. 
<br/><br/><label>ISBN: </label>8170001536; 9788170001539 
<br/><br/><label>Subjects--Topical Terms: </label><br/>  Classification, Dewey decimal.   ; Colon classification; Classification, Universal decimal.  .
<br/><br/><label>Dewey Class. No.: </label>25.43  / SEN