Sehgal, R. L. <br/><br/>
An introduction to universal decimal classification 

 - New Delhi  Ess Ess  1994 
 - 266p. 
<br/><br/><label>Subjects--Uniform Titles: </label><br/>universal decimal classification
<br/><br/><label>Dewey Class. No.: </label>025.4  / S27I