Kumar, Suseela <br/><br/>
Changing concepts of reference service 

 - Delhi:   Vikas Publishing House Pvt Ltd.,   1974 
 - 327p. 
 - Sarada Ranganathan endowment for library science series  7 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Library science
<br/><br/><label>Subjects--Index Terms: </label>Reference services 
<br/><br/><label>Universal Decimal Class. No.: </label>D 025.5(091)  / L4