Sehgal,R.L <br/><br/>
Number building in Dewey Decimal Classification Universal Decimal Classification 
R.LSehgal 
 - New Delhi  Ess Ess Publications  1993 
 - vii,varies 
<br/><br/><label>ISBN: </label>8170001536 
<br/><br/><label>Dewey Class. No.: </label>025.43  / S457N