Ranganathan S. R. <br/><br/>
Classification and Communication/ 
S. R, Ranganathan. 
 - New Delhi :  Ess Ess,  1973. 
 - 291 p. : 
<br/><br/> includes index 
<br/><br/><label>ISBN: </label>8170004748 
<br/><br/><label>LC Class. No.: </label>Z 696 .R17 1973