Urban, Sean E <br/><br/>
Explanatory supplement to the astronomical almanac 
Sean E. Urban and P. K. Seidelmann 
 - 3rd ed. 
 - California  University Science  2013 
 - xxxiv, 676p. 
<br/><br/><label>ISBN: </label>978-1-891389-85-6 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Astronomical almanac for the year 2013 supplement<br/>Nautical almanacs
<br/><br/><label>Universal Decimal Class. No.: </label>059: 52  / EXP