Library and information science: a general knowledge encyclopedia 
edited by Vijaya Kumar, S.P. Sood 
 - Jaipur  RBSA Pub.  1991 
 - 320 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Library science
<br/><br/><label>Dewey Class. No.: </label>020.3  / P N1