Encyclopaedia of the world scientists / 
edited by Nagendra Kr. Singh. 
 - New Delhi :  APH publishing corporation,  c 2004. 
 - Vols. ;  25 cm. 
<br/><br/>Includes Bibliography. 
<br/><br/>V. 9- (P to S) ; 
<br/><br/>333  333 
<br/><br/><label>ISBN: </label>81-7648-560-8 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Biography.<br/>Encyclopedias.
<br/><br/><label>Dewey Class. No.: </label>925.03 / E19