Campbell, William Wallace  <br/><br/>
The elements of practical astronomy 
William Wallace Campbell 
 - London  Macmillan  1909 
 - xii+264p.  appendix; illus; index 
<br/><br/><label>ISBN: </label>1179329198 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Astronomy
<br/><br/><label>Universal Decimal Class. No.: </label>52(075.2)  / CAM