Main, Robert <br/><br/>
Practical and spherical astronomy  Robert Main. 

 - London  Deighton Bell  1963 
 - xvi, 392p. 21cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Astronomy Spherical astronomy.
<br/><br/><label>Dewey Class. No.: </label>522.7  / M28P