Kumar, Krishan <br/><br/>
Theory of classification 

 - New Delhi:   Vikas Publishing House Pvt Ltd,   1979 
 - xii, 510p. 
<br/><br/><label>ISBN: </label>0706907973 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Library classification
<br/><br/><label>Subjects--Index Terms: </label>Cannons  Basic laws of library science 
<br/><br/><label>Universal Decimal Class. No.: </label>D 025.4  / L9