Singh, Tilak. <br/><br/>
Navin sodh vigyan /  
Tilak Singh. 
 - /   . 
 - Delhi :   Prakasan Sanasthan ,   2010. 
 - 247p. :   photos ;   25cm .  
<br/><br/>Includes index 
<br/><br/><label>ISBN: </label>8177142852  RS350.00 
<br/><br/><label>Subjects--Index Terms: </label>RESEARCH 
<br/><br/><label>Dewey Class. No.: </label>001.4  / SIN/N