Gupt, Yugal Kishore <br/><br/>
Pravastha niyam evam uske prayog / 
Gupt, Yugal Kishore 
 -  Rajasthan Hindi Granth Academy, Jaipur 
 - 294 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Chemistry
<br/><br/><label>Dewey Class. No.: </label>541.3  / GUPP