Singh, C. Praveen. <br/><br/>
Encyclopaedia Of Library and Information Science  :Documentation and Information Science In Libraries VOL-2 
/ by C. Praveen Singh 
 - 1st ed.  
 - New Delhi:  Alfa Publications,  2008 
 - 257p. 
<br/><br/><label>ISBN: </label>9788189913618 
<br/><br/><label>Dewey Class. No.: </label>020  / SIN/E