Ranganathan, S. R. <br/><br/>
Reference service / 
by S. R. Ranganathan 
 - London :  Asia Pub. House ,  1961 
 - 432p. ;  23 cm. 
 - Ranganathan series in library science,  8 .
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Reference services (Libraries)
<br/><br/><label>Dewey Class. No.: </label>020  / RAN-3