Indira Gandhi National Open University <br/><br/>
Reference and Information sources;Categories of refrence sourcespart1 

 - Delhi  IGNOU  2000 
 - 93 P. 
<br/><br/><label>ISBN: </label>8176056480 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Library Science
<br/><br/><label>Dewey Class. No.: </label>020 Ind