Usman, F. M.,  1928- <br/><br/>
Earth is constant, Sun rounds the earth / 
by F. M. Usman ; editorial assistant, S. E. Thomas 
 - Thanjavur :  Usman Publications,  1975 
 - ii, 94 p. :  ill. ;  19 cm. 
<br/><br/><label>ISBN: </label> Rs. 5.00 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Celestial mechanics--Miscellanea<br/>Earth--Rotation<br/>Sun
<br/><br/><label>Dewey Class. No.: </label>521.54