Smart, W. M. <br/><br/>
Textbook on spherical astronomy 
W. M. Smart                                               
 - 6th ed. 
 - Cambridge  Cambridge University Press  1977 
 - 431p. 
<br/><br/><label>ISBN: </label>0-521-29180-1 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Occultations and Eclipses<br/>Parallox<br/>Spherical Trignometry<br/>The Celestial Sphere
<br/><br/><label>Universal Decimal Class. No.: </label>521.9  / SMA