Encyclopaedia of library and information science in the digital age Vol 3 
Edited by Bhupendra Narayan Singh 
 - New Delhi  Anmol publication  2011 
<br/><br/><label>ISBN: </label>9788126146819 
<br/><br/><label>Dewey Class. No.: </label>025.00285 BHU/ENC.3