Narayan Singh, Bhupendran  <br/><br/>
Encyclopaedia of library manual 
/ Bhupendra Narayan Singh 
 - New Delhi  Anmol Publication pvt LTD  2011 
 - viii p295. 
<br/><br/><label>ISBN: </label>978-81-261-4678-9 
<br/><br/><label>Dewey Class. No.: </label>020  / NAR