Ranganathan, S. R <br/><br/>
Reference service 
S. R. Ranganathan 
 - 2nd ed. 
 - Calcutta  Asia Publishing House  c1961 
 - 432p.; 20cm.- 
 - Library Science series; no.2 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Reference services(Libraries)
<br/><br/><label>Dewey Class. No.: </label>025.52  / RAN