Lal, C  .  <br/><br/>
Granthalaya Evam Suchana Vidnyan ( Vivaranatmak Prashna ) /  C Lal. 

 - New Delhi   Ess Ess   2007 
 - 4.42 
<br/><br/><label>Dewey Class. No.: </label>020  / LAL