Astronomical Almanac for the year 2000 
United States Naval Observatory                              
 - Washington  U. S. Government Printing Office  1999 
 - [various pagings.] 
<br/><br/><label>ISBN: </label>0-16-049869-4 
<br/><br/><label>Subjects--Topical Terms: </label><br/>almanac<br/>astronomy
<br/><br/><label>Universal Decimal Class. No.: </label>059:52  / AAL-2000