The American Ephemeris and Nautical Almanac for the year 1980 
Nautical Almanac Office                                      
 - Washington  U. S. Government Printing Office  1979 
 - vii, 575p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Almanacs<br/>Ephemeris
<br/><br/><label>Universal Decimal Class. No.: </label>(059):52  / NAU-80