Cavin, Jerry D.  <br/><br/>
The Amateur Astronomer's Guide to the Deep-Sky Catalogs  [eBook] 

 - New York  Springer New York  2012 
 - Online resource 
 - The Patrick Moore Practical Astronomy Series .
<br/><br/><label>ISBN: </label>978-1-4614-0655-6 (Print) 978-1-4614-0656-3 (Online) 
<br/><br/><label>ISSN: </label>1431-9756 (Print) 2197-6562 (Online) 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Astronomy, Observations and Techniques<br/> Geographical Information Systems/Cartography<br/> Popular Science in Astronomy<br/>Physics