Dwivedi, Chandra Prakash Dhar <br/><br/>
Usma aur usmagatiki / 
Dwivedi, Chandra Prakash Dhar 
 -  Uttar Pradesh Hindi Granth Academy, Lucknow 
 - 455 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Physics
<br/><br/><label>Dewey Class. No.: </label>536  / DWIU