Bakich, Michael E. <br/><br/>
The cambridge encyclopedia of amateur astonomy 

 - Cambridge  Cambridge university press  2003 
 - xii, 342p. 
<br/><br/><label>ISBN: </label>0-521-81298-4 
<br/><br/><label>Subjects--Index Terms: </label>Astronomy- encyclopedias 
<br/><br/><label>Universal Decimal Class. No.: </label>52(03)   / BAK