"Khanna , J.K. ; Vashisht , K.K." <br/><br/>
Knowledge 

 - New Delhi  Ess & Ess Pub.  1985 
 - 513p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Library & Information Science
<br/><br/><label>Dewey Class. No.: </label>001 KHA