Gopalakrishnan,N <br/><br/>
Indian scientific heritage 
N.Gopalakrishnan 
 - Thiruvananthapuram  s.n  n.d 
 - x,405.  21cm 
<br/><br/><label>Subjects--Index Terms: </label>History-India,Ancient 
<br/><br/><label>Dewey Class. No.: </label>934  / GOP