Kumar, Krishan. <br/><br/>
Theory of Classification /  

 - 2nd ed /  
 - New Delhi :   Vikas publishing House pvt. ltd.. 
 - p.538,xii :  
<br/><br/><label>ISBN: </label>0-7069-1308-6 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Library Science
<br/><br/><label>Dewey Class. No.: </label>2:12  / l9;1