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

 - 2nd 
 - Delhi  Vikas India           1981 
 - 538p. Bib chapterwise  cm. 
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Library Sicence
<br/><br/><label>Dewey Class. No.: </label>2:51, L9;M1