Jaggi, O P <br/><br/>
Pracheen Bharat Ke Vaijnanic Evam Unki Upalabdhiyam (Hindi) / 
O P Jaggi. 
 - Delhi :   Atma Ram and Sons ;  1971./ 
 - 191 p. ; 
<br/><br/> includes index and biblioraphy 
<br/><br/><label>ISBN: </label>   
<br/><br/><label>Dewey Class. No.: </label>R44  / J185