Ball, Robert <br/><br/>
A treatise on spherical astronomy 
Robert  Ball    
 - Cambridge  Cambridge University Press  1908 
 - xii,506p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Astronomy<br/>Astronomy and Astrophysics Thesaurus<br/>Spherical Coordinates
<br/><br/><label>Universal Decimal Class. No.: </label>521.9  / BAL