Sonal Singh,  . <br/><br/>
Universe of knowledge : structure and development /  
by Sonal Singh. 
 - 1st ed /  
 - Jaipur :   Raj Publishing House ,   1994 
 - 261p :  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Library Science
<br/><br/><label>Dewey Class. No.: </label>236  / N8