ASTRONOMICAL ALMANAC <br/><br/>
The Astronomical almanac for the year 2011 and its companion: The Astronomical almanac online 

 - London  HMSO  2010 
 - Hbk. x p. + irreg 
<br/><br/><label>ISBN: </label>9780707741031 
<br/><br/><label>Source: </label>30832