Kumar, Suseela  . <br/><br/>
Changing concept of reference services /  
Suseela Kumar. 
 - Delhi :   Vikas Publishing House ,   1974. 
 - 326 p :   Tables ;   22 cm .  
<br/><br/>Includes index 
<br/><br/><label>ISBN: </label>0706903021  Rs. 40 
<br/><br/><label>Subjects--Index Terms: </label>REFERENCE SERVICES 
<br/><br/><label>Dewey Class. No.: </label>025.52  / KUM/C