Ranganathan, S. R. <br/><br/>
Reference service 

 - 2nd ed. 
 - Bangalore:  Sarada Ranganathan Endowment for Library science  1992 
 - 432p.  22 cm. 
<br/><br/><label>ISBN: </label>8185273200 
<br/><br/><label>Subjects--Uniform Titles: </label><br/>Library Reference service<br/>Library science
<br/><br/><label>Dewey Class. No.: </label>025.52  / RAN